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Purveyors of Electronic, Musical and Vintage goods from then, now and in between. 
Since 1982.

STEREO EQUALIZERS, REVERBS / SIGNAL PROCESSORS VINTAGE AND USED 


Used / vintage stereo EQ's / equalizers by Pioneer RG-2, EX-9000, Sansui RA-500, RA-700, RA-990, SR-202, spring reverbs & delays. DBX dynamic range expanders, switchers, selectors & noise reduction units DBX 200, 007, 200X, 222, 224. Pioneer SR, RG, 202w 60, 90, 303 reverbs & delays. Teac Pioneer Kenwood AT-80, DT-5, 510 Audio Timers & Sansui RG-700, 710, SE-9, Equalizers. BIC FM8 Beam Box. JVC SEA-80, 50, EQ's. Yamaha, ADC SS EQ, Bose 901 E EQ / equalizers & reverbs.

 

 


 

 







NEW
LISTING 1/7/14
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PIONEER SG-9500 / SG9500
VINTAGE PIONEER GRAPHIC EQUALIZER
Circa 1977-79

"WORLD AC POWER" ™
MIJ
for sale

SOLD 2/12/14
SHIPPING TO NEW HAMPSHIRE

ü  Our technician has completely gone through and 'Certified' this unit.

ü 
Everything was completely tested and benched.

ü  Most I/O jack and fader solder joints re-flowed for trouble-free service. 

ü  Tape monitor and 'EQ' switches cleaned

ü  We replaced the 'Power' indicator lamp

ü  We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect.

ü  It was then cosmetically detailed inside and out.

ü  All functions tested for perfect operation.

ü  All inputs tested and both side produces clean and even sine waves!

ü  Checked with oscilloscope. No power supply hum of any kind. <00.1mvAC! It's dead silent!

 
ü  Cosmetically in 'Near New' condition

 
One of the two sought after Pioneer Graphic EQ's. The Pioneer SG-9500. Classic Vintage 70's Pioneer look. Face is a thick milled, brushed aluminum plate with matching milled, aluminum switch caps. These look great racked up in a "Spec" System, and of course will add great sonic control to most stereo systems. Super quality build inside and out.
 
 Features include:
  
  
- One Octave Graphic EQ
  - 10 Graphic bands of control
  - +- 10dB Cut / Boost
 
 - 70mm Long Throw, Linear Pots
 - Individual OP amps per each frequency range, no coils results in stable performance over time since coils can drift in values
 
 - The 10 frequency centers are as follows (starting at the low-end):
  32Hz-64Hz-125Hz-250Hz
  -500Hz-1KHz-2KHz-4KHz
  8KHz & 16KHz
 
 - Tape Monitor
 (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / iPod / MP3 / XM / SIRUS CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
  - EQ Record function, for imprinting EQ curve to recordings
  - EQ defeat / bypass
 - Rear mounted, Un-switched AC convenient outlet rated at 200 watts

 
 
Original Specs:
 

 # Channels; 2 (stereo)
 # Graphic Bands;
10
 # Cut / Boost dB's: 10±
 
Input Impedance 100kΩ
 
Output Impedance: 600 Ω
 
Signal to Noise Ratio
 (IHF, A Network, short circuited, 2V Output)
90dB
 
THD @ 20Hz - 20kHz, All Control Flat Output 1 V: 0.04%
 THD @ 1 kHz, All Control Max. Output 3V: 0.04%
 THD @ 1 kHz, All Control Flat Output 2V: 0.03%
 THD @ 1 kHz, All Control Min. Output 1V: 0.05%
 Frequency Response: 5Hz - 70kHz  +0,-1dB

 
 
Each of the graphic controls are an extra-long 80mm in throw length (most home units are 30mm. Unit has been completely evaluated, tested and cleaned inside & out. Even though the power indicator lamp was in fine working order, we replaced it for future years of trouble-free service. We also disassembled, cleaned and re-lubed the "varnished" power switch shaft plunger. We also, of course cleaned both the Tape Monitor and EQ Bypass switch contacts for silent operation (they were actually already quiet). Works and sounds GREAT! Looks fabulous with only some very minor scuffs on the top edge of the face plate and the  sheet metal cover. Measures 16.5" wide x 13" deep x 6" high and weighs 15 lbs unpacked. Includes our standard 90 day limited warranty.

 PIONEER SG-9500 GRAPHIC EQUALIZER
Cond. 8.5+

(C) R.R.
SOLD 2/12/14
SHIPPING TO NEW HAMPSHIRE

 
(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)


 

 



     

 


         NEW LISTING
12/6/13

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VINTAGE PIONEER SG-60
GRAPHIC EQUALIZER EQ
#...789S
STEREO 12 BAND "OCTAVE" EQ
Circa 1984-85
"WORLD AC POWER" ™
MIJ

for sale


ü  Our technician has completely gone through and 'Certified' this unit.

ü  AC voltage selector corrected for North American AC Power / Current.

ü 
Everything was completely tested and benched.

ü  Most I/O jack and fader solder joints re-flowed for trouble-free service. 

ü  Tape monitor and Attenuator switch locks checked for proper function. All 'latched' switches locking fine.

ü  We checked and replaced lamps where needed.

ü  We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect.

ü  It was then cosmetically detailed inside and out.

ü  All functions tested for perfect operation.

ü  All inputs tested and both side produces clean and even sine waves!

ü  Checked with oscilloscope. No power supply hum of any kind. It's dead silent!

 
ü  Only minor cosmetic issues in that there are a couple of 'dark' areas to the upper edge of the face plate (not visible from a 'head on' view) and some light scuffing to the case / cover (see photos above). Overall, still looks nice and sounds great!
 ______________________________

The Pioneer, SG-60 Dual 10-band stereo, graphic EQ.
Pioneer SG-60 features include:
 

- 'One Octave' Stereo, 12-band Graphic EQ
- 12 'linear-fader' controlled frequencies per channel
- +- 12dB Cut / Boost (most EQ's only allow 10dB)
- The 12 frequency centers are as follows (starting at the low-end): 16Hz - 32Hz - 64Hz - 125Hz - 250Hz - 500kHz - 1kHz - 2kHz - 4kHz - 8Hz - 16kHz & 32kHz.
- 60mm Linear faders utilizing high quality potentiometers with a 'center detent'
- Dual Tape monitors (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
- EQ Record function, for imprinting EQ curve to recordings

- EQ defeat / bypass
- Selectable 'Line Out' (we've never seen an EQ with this that we can remember)
- AC un-switched convenience jack located on the back, rated at a total of 100 Watts

- "WORLD AC POWER"™ 50 / 60 cycles there is a 110V, 120V, 220V & 240V selector for use anywhere in the world!

  
Pioneer SG-60 Original Specs:
  
# Channels: 2 (stereo)
# Bands: 20 (12 stereo)
# Cut / Boost dB's: 12±
THD: 0.001% @ 2V output & 1kHz
Gain: 0dB w/ all controls 'centered'
Output (RMS V): 6V @ 1K w/ 0.01% THD
Overall Frequency Response: 10-100kHz
Input Sensitivity / Impedance: 150mV / 47
Output Sensitivity / Impedance: 150mV / 200Ω
Tape Output Impedance: 150mV / 2.2kΩ
S/N A-weighted (IHFA): 120dB @ 2V output
 

Overall, this is a great looking and performing EQ and is built using quality, center de-tented linear controls with +/- 12dB of range and a full 60mm of throw! Other than the previously mentioned light scuffing to the top cover and the scuffs to the upper front edge (not visible from 'head-on'), the unit looks great. Again, we have completely gone through cleaning it, refurbishing & checking all functions. All controls and switches cleaned for worry-free service. Measures 16.5" wide x 14" deep x 5.25" high and weighs 12 lbs unpacked. Includes our standard 90 day limited warranty.
PIONEER SG-60 STEREO GRAPHIC EQ
Cond. 8.5
$359. 


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)


 

 





         NEW LISTING 12/6/13
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VINTAGE TECHNICS SH-8045
DUAL 12 BAND, STEREO, GRAPHIC EQ

#...B023
Circa 1982-86

   "WORLD AC POWER"
 MIJ
 
for sale
Classy looking silver face, Technics 24 band Equalizer (12 bands per stereo channel) Stereo, Graphic Equalizer. We have completely bench tested it and it passed all with 'flying colors'!
Technics SH-8045 features:

 
 
- Dual 12 band, 'Octave' Graphic EQ  
- Each of the graphic controls feature a full +-12db of cut / boost (instead of the common 10 db)
- 30mm in throw length, high quality, linear, de-tented faders
- 12 frequency centers are as follows starting at the low-end: 16Hz, 31.5Hz - 63Hz - 125Hz - 250Hz - 500Hz - 1kHz - 2kHz - 4kHz - 8kHz - 16kHz & 32kHz.
- Tape Monitor (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
- EQ Recording function to imprint tapes / CD's / DAT's / Hard Drive with EQ curve for playback on a car stereo or to allow for deficiencies in speakers.
- Selectable Cut / Boost Range w/ indicator (as stated earlier this unit features +/-12dB of range, but is also selectable for only +/-3dB if desired. There is what appears to be a 'Level Indicator / Bar Graph' in the center of the unit, however this is simply an 'indexed' light that changes colors. Orange for
+/-3dB and Yellow for +/-12dB
- EQ bypass
  - An un-switched AC convenience jack located on the back rated at 150 Watts

- "WORLD AC POWER"™ 50 / 60 cycles there is a 110V, 120V, 220V & 240V selector for use anywhere
in the world!


Technics SH-8045 Original Specs:
 
# Channels: 2 (stereo)
# Bands: 24 (12/channel)
# Cut / Boost dB's: Selectable ±3dB or 12dB
Input Impedance / Sensitivity
: 47 kOhms / 1V / 8V max
Output Sensitivity
: 1V / 8V max
Gain
: 0 ±1dB
 Freq Response w/ EQ 'Zero'd': 5-100kHz +.05dB / -1dB
THD: 0.005% @ rated output, 20-20kHz & 0.003 @ 1kHz

Channel Separation: 70 dB
 S/N A-weighted: 100dB !!!


Again, as stated earlier, we have completely gone through it, checking all functions. Unit is clean both cosmetically and sonically. Looks fine and sounds great! Great EQ for any 'old school' system. Measures 17"w x 9.25"d x 2.2"h and weighs 6 lbs unpacked. Includes our standard 90 day limited warranty.
TECHNICS SH-8045 GRAPHIC EQUALIZER
 Condition 8.5
$199.


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)


 

 

    

        NEW LISTING 1/4/14
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VINTAGE
JVC GRAPHIC EQUALIZER
JVC SEA-10 / SEA10 EQ
STEREO, 1.66 OCTAVE, 5 / 7-BAND
#...8989

Circa 1977
MIJ

for sale
Our technician has completely gone through and 'Certified' this unit.
Unit was disassembled for restoration / reconditioning. All toggle switches painstakingly cleaned. Linear faders still clean and retain their 'smooth' feel. Original LED 'power' indicator functioning fine. We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect. It was then cleaned inside and out, then polished to look great. Only issue cosmetically is some scuffing on the left, side panel of the face (not visible from front)
 Unit performs and sounds great!

 ______________________________

Great design, build quality with no-excuse sonic quality and very easy to use. The JVC SEA-10, 5 / Pseudo-7-band "combined" stereo, graphic EQ. Combining the faders into stereo units, as opposed to separate left and right is so much easier to utilize for most users. One of the best built EQ's we had the pleasure to work on internally.

JVC SEA-10 features include:


- 1.66 Octave Graphic EQ
- 5-Physical faders / bands with the lowest and highest having selectable 'centers' Band, (combined stereo faders)
- +- 12dB Cut / Boost (most do only 10 dB)
- 5 frequency centers are as follows (starting at the low-end):
  Lowest band selectable 40Hz or 60Hz - 250Hz - 1kHz - 5kHz & the last / upper band is selectable
10kHz or 15kHz.
- LONG 70mm Linear faders utilizing super quality potentiometers
- 'True' Tape Monitor having both standard RCA and DIN (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
- SEA EQ 'Record' function, for imprinting EQ curve to recordings
- EQ defeat / bypass
- -6dB input attenuator on rear panel
- 'Un-switched' AC convenience jack rated for 150 Watts
 
JVC SEA-10 Original Specs:
 
 # Channels: 2 (stereo)
 # Bands: 5 w/ selectable extremes
 # Cut / Boost dB's: 12±
 Output (RMS V): 1
 THD: 0.1% @ rated output, 20-20kHz
 S/N A-weighted: 70 dB

This is a great looking and performing EQ and is built using super quality, de-tented linear controls  with a full 70mm of throw! Again, we have completely gone through cleaning it, refurbishing  & checking all functions. All controls and switches cleaned for worry-free service. VERY well built, super clean (check out the THD rating), virtually NO crosstalk and sounds fabulous. Measures 7.5" wide x 10" deep x 5.25" high and weighs 6 lbs unpacked. Includes our standard 90 day limited warranty.
JVC SEA-10 GRAPHIC EQUALIZER
Cond. 8
$189.
(C) R.R

 

(Above text property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

Pioneer_SG-540_Stereo_EQ_web.jpg (36256 bytes)

Pioneer_SG-540_Stereo_EQ_collage.jpg (181996 bytes)

        NEW LISTING 1/4/14
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VINTAGE
PIONEER STEREO GRAPHIC EQUALIZER / EQ
PIONEER SG-540 / SG540
Circa 1982-85

for sale
Very easy to use and good quality Pioneer SG-540 dual 7-band stereo, graphic EQ. This Pioneer EQ covers the following frequencies:  60Hz, 150Hz, 400Hz, 1kHz, 2.4kHz, 6kHz & 15kHz. Each frequency also allows cut / boost of a full 10 dB. With the exception of some very light scuffing across the 'top' edge of the front plate (not visible from 'head on' view) the unit looks near new.
Pioneer SG-540 features include:

- Dual-7 Graphic Bands
- One Octave EQ width

- Tape Monitor
(Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
- EQ Record (allows curve to be imprinted on recordings. Great for restoring 'less than perfect' recordings, or 'helping' along another 'playback' system)
- Un-Switched AC convenience outlet rated at 100 Watts on rear panel

  
Pioneer SG-540 Original Specs:
  
# Channels: 2 (stereo)
# Bands: 14 (7 stereo)
# Cut / Boost dB's: 10±
THD: 0.005% @ 1V output & 1kHz
Gain: 0dB w/ all controls 'centered'
Output (RMS V): 1V @ 1K w/ 0.005% THD
Input Sensitivity / Impedance: 150mV / 47
Output Sensitivity / Impedance: 150mV / 200Ω
Tape Output Impedance: 150mV / 2.2kΩ
S/N A-weighted (IHFA): 100dB @ 1V output


This is the classic entry level Pioneer EQ. Classic Pioneer look combined with simple, yet great audio performance. EQ built using super quality, de-tented linear controls  with a full 70mm of throw! We have completely gone through cleaning it & checking all functions. All controls and switches cleaned for years of worry-free service. Measures 16.5" wide x 9.5" deep x 4" high and weighs 7 lbs unpacked. Includes our standard 90 day limited warranty.
PIONEER SG-540 EQUALIZER
Cond. 8.5

$149.


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

  

 

 



 


NEW LISTING
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VINTAGE
ADC STEREO GRAPHIC EQUALIZER / EQ
"SOUND SHAPER ONE" MK II
Circa 1980-82

SOLD 3/5/14
SHIPPING TO TEXAS

Very easy to use and good quality ADC dual 5-band stereo, graphic EQ. This ADC EQ covers the following frequencies:  60Hz, 240Hz, 1kHz, 3.5kHz, 10kHz. Each frequency also allows cut / boost of a full 12 dB (most home EQ's are only a maximum of 10 dB + or - ).
Other features include:

- Tape Monitor
 
(Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)
Dubbing can be used with CDR (CD recorders) units)

- Classic ADC Rack Handles

This is the classic entry level ADC. Classic ADC look combined with simple, yet great audio performance. EQ built using super quality, de-tented linear controls  with a full 60mm of throw! We have completely gone through cleaning it & checking all functions. All controls and switches cleaned for years of worry-free service. Measures 12.25" wide x 9" deep x 4.25" high and weighs 3 lbs unpacked. Includes our standard 90 day limited warranty.
ADC SS-ONE MK II
Cond. 8.5

SOLD 3/5/14
SHIPPING TO TEXAS


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

  

 

 


AUDIO EQUALIZERS
and our philosophy on them.
   
                               "Are Equalizers really necessary? I just paid $30 grand for my speakers. They shouldn't need any EQ. Right!??"

Short answer is probably yes, an EQ will generally be beneficial to most systems.
     Most speaker designers strive to make a speaker's curve as "flat"* as their projected size parameters and target retail price will allow. The human hearing curve is not "flat". Most folks' hearing is accentuated in the midrange (it's where the human voice is centered) and attenuated in the bass and treble. Sort of a reverse "rock-n-roll smile" curve. When you hear a good, "flat" response speaker, it will likely appear to have an over abundance of mids, at least for most listeners. It will also likely have a deficiency in bass and possibly treble. It will most likely sound  "thin", the degree of which can vary from slight to extreme, depending again, on many variables. This might not even be readily apparent when auditioning speakers, but generally if you hear a pair speakers with an appropriately adjusted, EQ engaged, then you listen to it bypassed, you will want to re-engage it as quickly as possible.
     The classic arguments against using an EQ have been that an EQ, or any additional inserted signal processing device, makes the signal path less "pure" and adds noise. Also, again, "these speakers were expensive and shouldn't need an EQ". To address the first point, this issue can usually be reduced to a more than desirable point by utilizing a high quality EQ or signal processor. The noise floor should certainly be below audible levels, and it doesn't take too much of an EQ to achieve that for most folks systems.  While the first point is valid, a good EQ's benefits usually far outweigh any minor noise issues, which are probably below most listeners audible limits in the first place. The second issue was answered previously, in the above paragraph.   In fact, the better the speakers, the more they would likely benefit from a reduction of the midrange frequencies, due to their as "flat as possible" curve. Again, this would apply to the average persons hearing curve. Some "cheap" speakers, will have a "rock-n-roll smile" EQ curve built-in by utilizing drivers, crossover and cabinet combinations, that have an over abundance of bass and treble, and a deficit of mids by design. That would beg the question of "why wouldn't they all just do that then". The answer to that is that any respectable speaker manufacturer wouldn't try and dictate a built-in curve into a speaker other than as flat as assigned parameters will allow, for a number of reasons.
     Another less apparent, but still valid reason for utilizing an EQ can be to compensate for listening room acoustic characteristics. This is generally more difficult to assess, but overtime could become a desired need. This need would obviously change with any parameter change in the listening environment. Also, and no offense, but as we age and as we are exposed to various, sometimes, injurious sonic environments and events, our sensitivity to frequency ranges will change.
     One way to look at a specific speaker / listening environment combination is to think of it as a blank artists canvas. A really high quality speaker system would be comparable to a high quality canvas, brushes and material. Said another way, a "non-flat" EQ curve / listening environment / speaker combination is akin to starting your painting with a dirty, blotchy canvas. The listening environment to a well lit room with natural lighting, conducive to a creative mood. Until you "shape" the EQ, there is no painting on the blank canvas. Once you shape the EQ to your tastes, in a way that compliments the speaker design / room combination, you have created your work of art.

    While I can appreciate all the arguments for not using an EQ, in the end, I generally use an EQ with it's curve slightly boosted in the bass and treble frequencies and attenuated through the mid frequencies from "Zero" position (the "rock-n-roll smile" curve). It will usually require adjustment following any change in speakers, listening environment parameter adjustments and with the material I am listening too. I also have a 1/3 octave RTA monitor / spectrum analyzer with a pink noise generator and analyzing mic to establish an accurate "flat" point to start from.

 * Contrary to a somewhat common misconception, "Flat" does not mean "dull". "Flat" refers to the graphic "curve" of a speakers output when analyzed by a spectrum analyzer. Ideally a speaker should be able to reproduce the human hearing range with all frequencies as close to "zero" (even amplitude or "flat") as is practical for the intended design / price point levels. The listener can then modify it from there by various methods (usually some sort of signal processor such as an EQ) to their tastes.


 

AUDIO REVERBS / DELAYS
 


NONE CURRENTLY, BUT MORE WILL BE ADDED TO PAGE IN FUTURE
 



AUDIO TIMERS

 



NEW ADDITION 2/4/11
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VINTAGE PIONEER AUDIO TIMER / DIGITAL CLOCK
DT-570 DT570
 Circa 1981-82
 Made in Japan 

   "WORLD AC POWER"
 
for sale
 Pioneer DT-570 Audio Timer. These were originally designed for setting your system to record scheduled FM radio shows and Album rock. They also can be used to turn your system into a Super-Hi-Fi Alarm clock radio and / or just as the ultimate and really cool digital clock.
This is from a collection of these that took us a long time to amass. Many of these will erratically change / advance the time after they've been on for 1 or 2 hours. This is one of the few out of the many we get that keeps time perfectly and was checked over a 1 week period. Entire unit was disassembled and cleaned inside and out, including the internal switches.  All functions test perfectly. This is the one with the Aqua Blue Fluorescent digital readout and black face plate. Use it to turn on most anything with a latched or mechanical power switch. Will switch up to 1200 watts via dual AC outlets. Unit looks near new and works great! Clock memory is volatile at power outages. Measures 16.5" wide x 5.5" deep and 2" high and weighs 4 lbs unpacked. Includes our standard 90 day limited warranty.

 PIONEER
 DT-510
 Cond. 8.5
 $129.


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 



 



 

-

TAPE NOISE REDUCTION UNITS

 



MISC PROCESSORS


 

 

    



NEW LISTING 1/4/14
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PRE-OWNED
RADIO SHACK / REALISTIC 42-2105
REALISTIC TAPE CONTROL CENTER
TRIPLE INPUT / OUTPUT TAPE MONITOR / TAPE INPUT SELECTOR
SIGNAL-PROCESSOR SELECTOR

 
for sale


ü  Our technician has completely gone through and 'Certified' this unit.

ü 
Entire unit disassembled for refurb / bench check / testing / repair

ü  Most I/O jack and fader solder joints re-flowed for trouble-free service. 

ü  All toggle switches cleaned (entire circuit board must be removed to access).

ü  All 'latched' switches locking fine.

ü  We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect loop.

ü  It was then cosmetically detailed inside and out.

ü  All functions tested for perfect operation.

 
ü   While the 'bats' (handles) on these switches are suscetible to breaking due to rough handling, all the switches on this particular unit intact and fine. (we have spare switches for these 'just in case'. Overall, still looks nice and works perfectly following restoration!
 ______________________________


Very versatile unit allows selection between up to 3 tape decks (Reel to Reels, Cassette Decks, 8-Track Decks, DAT's, CDR's, iPod's, MP3 Players, DVD Players,  Audio etc.) or up to 3 Audio Signal Processors (Reverbs, enhancers, delays, dynamic processors, EQ's etc.)

ü  Connects easily to the ‘Tape-In’ / ‘Tape-Out’ jacks on your existing Stereo Receiver, Pre-Amp or Integrated Amplifier. If you don’t have a ‘true’ tape-monitor or ‘tape-loop’ you can also connect it simply to an input. You just won’t have any ‘record’ capabilities.

ü  ‘Triple’ 'TRUE' tape monitors (Tape Monitors can be used with Tape decks such as Cassette Tape Recorders/ Players, Reel to Reel's, 8-Track Tape Cartridge Decks, Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPad® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)

ü  ‘Bi-Directional’ Dubbing / Copying from one deck to another

ü  Can also be used to connect ‘Signal Processors’ such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc, instead of ‘Source / Record’ devices

ü  Inputs could be used for turntables with the addition of a simple ‘phono pre-amp’ available here…

ü  Completely ‘passive unit, meaning no ‘power’ or ‘power supply’ required for operation

ü  Toggle Switch routing eliminates the hassle of ‘swapping’ patch cables and cords.

ü  Easy to connect and use!

All functions test great. These are great "tools" to have in any audio rack. Greatly enhances the versatility of most audio systems. The unit works and looks great. Comes with an 'e' copy / pdf download of the Realistic Tape Control Center / 42-2105 owners / users / operations manual. Measures 6.25" wide x 4.75 deep x 2.25" tall. Includes our standard 90 day limited warranty!
REALISTIC 42-2105 TAPE SWITCHER / SELECTOR
Cond 8.5++

$49.


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

  

 

 

 

LINKS TO OUR 'HI-FI' DEPARTMENTS

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Pre-Amps

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Decks

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Processors

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Walkmans

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Wondering where the "tone" you remember went?....

Vintage  Stereo Equipment receivers speakers Classic Silver Audio Collection and jerry

 

.... Surround yourself with Silver and find it again!

 

 

-


FOR MORE "SOLD / ARCHIVED" UNITS PAGE - CLICK HERE!

 

RECENTLY SOLD UNITS BELOW





NEW ADDITION 2/4/11
 (Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes)  warranty
VINTAGE  
FISHER AUDIO TIMER / DIGITAL CLOCK
TR-3000 TR3000
 Circa 1980-81
 Made in Japan 

   "
WORLD AC POWER"
SOLD 5/7/13
SHIPPED TO NEW YORK

 Fisher TR-3000 Audio Timer. These were originally designed for setting your system to record scheduled FM radio shows and Album rock. They also can be used to turn your system into a Super-Hi-Fi Alarm clock radio and / or just as the ultimate and really cool digital clock.
Features:
- 24 Hour 'Military' Time (as we are located in Colorado Springs, this unit was likely brought back by a GI)
- 'Sleep Timer' function from 1:59-1 minutes
- 4 'Switched' AC outlets
- 'Auto-Dimming' senses room light level and raises readout
- Rear located, variable 'Brightness' control for the readout

 -  Semi
"WORLD AC POWER"™  50 / 60 cycles, but will need a transformer / converter for 'non-North American' AC voltages / use.

This is from a collection of these that took us a long time to amass. Many of these will erratically change / advance the time after they've been on for 1 or 2 hours. This is one of the few out of the many we get that keeps time perfectly and was checked over a 1 week period. Entire unit was disassembled and cleaned inside and out, including the internal switches. All functions test perfectly. Aqua Blue Fluorescent digital readout and black face plate. Use it to turn on most anything with a latched or mechanical power switch. Will switch up to 500 watts via 4, rear located AC outlets. Unit looks near new and works great! Clock memory is volatile at power outages. Measures 17.25" wide x 5.25" deep and 1.75" high and weighs 4 lbs unpacked. Includes our standard 90 day limited warranty.

FISHER TR-3000
 Cond. 8.5+

SOLD 5/7/13
SHIPPED TO NEW YORK


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

   


 


NEW LISTING 12/6/13

(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes)  warranty
SANSUI SE-8 / SE8 GRAPHIC EQUALIZER 
SANSUI SE-8 / SE8
#...0576
 W/ SPECTRUM ANALYZER
 CIRCA 1981-'85

MIJ

SOLD 12/11/13
SHIPPING TO CALIFORNIA

ü  Our technician has completely gone through and 'Certified' this unit.

ü  Everything was completely tested and benched.

ü  Most I/O jack and fader solder joints re-flowed for trouble-free service. 

 ü  Tape monitor and Attenuator switch locks checked for proper function. All 'latched' switches locking fine.

ü  We checked and replaced lamps where needed.

ü  We then tested both channels with a test tone and O-scope, analyzing each channels with and without the independent effects.

ü  It was then cosmetically detailed inside and out.

ü  All functions tested for perfect operation.

ü  All inputs tested and both side produces clean and even sine waves!

ü  Checked with oscilloscope. No power supply hum of any kind. It's dead silent!

 
ü  No scuffs / scratches or anything to mention. Unit is clean both cosmetically and sonically. Looks and sounds great! 

The Sansui SE-8 Audio System Equalizer. I sold these units new when I was a Sansui dealer. Great quality dual 10 band EQ with Spectrum Analyzer. Each of the graphic controls feature a full +-12db of cut / boost and are an extra-long 70mm in throw length (most home units are 30mm).
Sansui SE-8 Features:

 
- One Octave Graphic EQ
- 10-Band, Graphically controlled frequencies per channel
- +/- 12dB Cut / Boost (most do only 10 dB)
- The 10 frequency centers are as follows (starting at the low-end):
 32Hz - 63Hz - 125Hz - 250Hz
- 500Hz - 1kHz - 2kHz - 
 4kHz - 8kHz & 16kHz.
- 70mm Long Throw, Linear Pots
- 10-Band, Fluorescent bar graph Spectrum Analyzer display selectable for either Left, Right or Stereo indication
- Meter "Peak Hold" function
- Infinitely variable Meter Level control
- Dual Tape Monitors (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / iPod / MP3 / XM / SIRUS CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
- EQ Record function, for imprinting EQ curve to recordings
- EQ defeat / bypass
- Un-switched AC convenience outlet on rear panel
 
Sansui SE-8 Original Specs:
 
# Channels: 2 (stereo)
# Bands: 10 Graphic
# Cut / Boost dB's: 12±
THD: 0.008% @ rated output, 20-20kHz
Input Level @ 1kHz: 30k Ohms
Output
Level @ 1kHz: 1 Volt @ 30k Ohms (max 4V @0.5% THD)
S/N A-weighted: -110 dB

Gain @ 1kHz: 0dB
 
Again we have completely gone though this unit testing all functions. It was then "burned" continuously for 72 hours. EQ is in great cosmetic shape and looks near NEW and sounds GREAT! Measures 17" wide x 10.75" deep x 5.25" high and weighs 10  lbs unpacked. Includes our 90 day limited warranty.
 SANSUI SE-8 GRAPHIC EQUALIZER
cond. 8.5

SOLD 12/11/13
SHIPPING TO CALIFORNIA


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)
 





 NEW LISTING 12/5/12
(Click on above thumbnails to enlarge photos)

CheckMarkSmall_web.jpg (792 bytes) warranty
VINTAGE PIONEER DYNAMIC PROCESSOR
PIONEER RG-9 RG9

  
"WORLD AC POWER"

Circa 1982-'83
#...6392

 MIJ

 
for sale
SOLD 8/8/13

SHIPPED TO NEBRASKA
 
Super clean "Champagne" Matte Dynamic Processor. The Pioneer RG-9 adds 'life' and brilliance to your recordings / music. Put the 'punch' back into your bass and the sizzle in your top-end. Striking Green Fluorescent display that pulses with the beat.
Pioneer RG-9
Features Include:
 
 
- Expansion depth is completely variable for custom tailoring to your tastes
 - This unit really brightens up your sound and makes it come Alive
 - These are similar to a DBX 3BX or an Aural Exciter
 -Rear panel includes a selectable -6db attenuator for use with pro-gear
 - True " WORLD AC POWER"™ Operates on 50 / 60 Hz AC and voltages from 110-240 AC
 - 100 watt, un-switched AC convenience outlet is also on the rear panel

 
 
Pioneer RG-9 Specs:
 Dynamic Expansion:
4, 7, 10, 13, 16 dB
 Attack Time: 0.3 mS
 Release Time: 120 mS
 S/N Ratio: 100 dB
 THD: 0.05%

 

 
We have completely gone through it cleaning all pots and switches. Dynamic processors are a "subtle" effect, and should be anticipated as such. Looks good with only very minor wear and sounds great! Measures 16.5" wide x 14" deep x 6" high and weighs 18lbs unpacked. Includes our standard 90-day limited warranty!
PIONEER RG-9 DYNAMIC PROCESSOR / RANGE EXPANDER
 Cond. 8.5

SOLD 8/8/13

SHIPPED TO NEBRASKA


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)


  

 
 

DBX_NX-40_Noise_Reduction_web.jpg (21656 bytes)



(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
PRE-OWNED
DBX TAPE NOISE REDUCTION UNIT
NX-40 NX40
DBX TYPE II
#...2133
Circa 1982-86

for sale
Great for use with Reel to Reel decks or Cassette Decks. Blows Dolby B or C out of the water! DBX has been used in recording studios for years. Gets rid of tape hiss. Period! Will connect to any quality component system & / or analog studio deck. Will also accept signals from those rare DBX encoded LP's. Record and Playback levels located on rear panel. Utilizes dual 'AN6291' dbx IC chips. This unit is in great condition. We have completely gone through and tested the unit. Looks fine, sounds and works great! Unit is narrow at 7" wide x 9" deep x 1.75" (1 rack space) tall and weighs ~3 lbs unpacked. Comes with a copy of the dbx NX-40 owners / users manual. Includes our standard 90 day limited warranty.
DBX NX-40
Cond. 8.5
$89.
SOLD 7/17/13
SHIPPED TO PENNSYLVANIA


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

    

 NEW LISTING 4/19/13
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty

PIONEER SG-9 / SG9 STEREO EQUALIZER
DUAL 12 BAND STEREO GRAPHIC EQ / EQUALIZER
#...4841Z

   "WORLD AC POWER"
Circa 1979-81

for sale
SOLD 8/8/13

SHIPPED TO NEBRASKA
(The one with the LED's in each slider)

ü  Our technician has completely gone through and 'Certified' this unit.

ü  Everything was completely tested and benched.

  ü  Unit was disassembled for restoration / reconditioning.

ü  Most I/O jack and fader solder joints re-flowed for trouble-free service. 

 
ü  Tape monitor and Attenuator switch locks checked for proper function. All 'latched' switches locking fine.

ü  We checked and replaced lamps where needed.

 
ü  We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect.

ü  It was then cosmetically detailed inside and out.

ü  All functions tested for perfect operation.

        ü  All inputs tested and both side produces clean and even sine waves!

  
ü  Checked with O-Scope. No power supply hum of any kind. It's dead silent!
 
ü  No scuffs / scratches or anything to mention. Switch / Fader caps all 'shiny' with none of the 'corrosion / patina' we commonly see on about 50% of Pioneer units (just FYI). Unit is clean both cosmetically and sonically. Looks and sounds great!

Sought after flagship EQ of the Pioneer "Golden Era". This is the EQ designed with the "Pioneer SPEC 1 & 2" system. Great looking Silver-Face Pioneer 24 band Equalizer (12 bands per stereo channel).

Pioneer SG-9800 Features include;

- 12 Bands per channel ('One-Octave EQ')
- 70mm 'Long Throw' faders with +-10dB.
- Separate Left and Right EQ Frequency centers are at 16Hz, 32Hz, 64Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8Khz, 16kHz & 32kHz.
- LED lit faders
- EQ Recording function to imprint tapes / CD's / DAT's / Hard Drive with EQ curve for playback on a car stereo or to allow for deficiencies in speakers
- Tape monitor  (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
--3 &-6 dB input attenuator (useful for DJ, Studio, Live Sound or any application when used with stronger than normal line-level signals)
- Overload indicator for attenuator
- One un-switched AC convenience jack located on the back rated at 100 Watts
- "WORLD AC POWER"™ 50 / 60 cycles there is a 110V, 120V, 220V & 240V selector for use anywhere in the world!


Again, our tech has completely gone through this unit and 'certified' it READY TO GO! Looks NEAR NEW and works great. This is considered to be one of the best 'all around' home audio EQ's ever produced. Clean, Quiet, Musical and easy to use. Add's depth, and punch to any system. What more could you ask!?!
Perfect compliment to most any audio system (except suckie, modern A/V / surround / 5.1 / 7.1 / BR549 / Home theater systems)
 Measures 16 5/8" wide x 14" deep x 6" high and weighs 15 lbs unpacked. Includes our standard 90 day limited warranty.
PIONEER SG-9 STEREO EQUALIZER
Cond. 9

(C) M.R.

SOLD 8/8/13

SHIPPED TO NEBRASKA


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)


 

  

 

NEW LISTING 4/18/13
 (Click on above thumbnails to enlarge photos)

CheckMarkSmall_web.jpg (792 bytes) warranty
 YAMAHA GRAPHIC EQUALIZER W/ RTA
YAMAHA EQ-500U GRAPHIC EQ  
 W/ PINK NOISE GENERATOR AND SPECTRUM ANALYZER / RTA
 CIRCA 1987-91

SOLD
4/19/13
SHIPPED TO TEXAS

ü  Our technician has completely gone through and 'Certified' this unit.

ü  Everything was completely tested and benched.

ü  Unit was disassembled for restoration / reconditioning.

     ü  Linear fader / potentiometers checked for quiet operation.

ü  Most I/O jack and fader solder joints re-flowed for trouble-free service. 

ü  Tape monitor and Attenuator switch locks checked for proper function.

ü  All 'latched' switches locking fine.

ü  All LED and Fluorescent indicators checked

 
ü We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect.

ü  It was then cleaned inside and out.

ü  All inputs tested and both side produces clean and even sine waves (checked with AF gen and oscilloscope)! All functions tested for perfect operation. No power supply hum of any kind. It's dead silent!
 Unit is clean both cosmetically and sonically. Looks Near New and sounds great!

The Yamaha EQ-500U dual, 10 band EQ with Spectrum Analyzer, built-in pink noise generator and microphone input. This is a true Real Time Room / Speaker Analyzer. Using an RTA / with a pink noise generator like this is the only way you can truly know you have your speaker / room environment combination adjusted for pure "Flat" response. Each of the graphic controls feature a full +-12db of cut / boost (instead of the common 10 db) and are a long 60mm in throw length (most home units are 30 - 40mm).


Yamaha EQ-500U Features / Benefits:
 

 
- One Octave Graphic EQ
 - 10-Band, Graphically controlled frequencies per channel
  - +- 12dB Cut / Boost (most do only 10 dB)
 - The 10 frequency centers are as follows (starting at the low-end):
 30Hz - 60Hz - 120Hz - 240Hz
 - 480kHz - 1kHz - 2kHz - 
 4kHz - 8kHz & 16kHz.
  - 60mm Long Throw, Linear Pots
 - Built-In Pink Noise generator
 - 1/4" Mic input for use with Spectrum Analyzer and pink noise generator to "Flatten room" with EQ

 
- 10-Band, Fluorescent bar graph Spectrum Analyzer display selectable for either Left, Right or Stereo indication
 - Infinitely variable level control for Spectrum display
 - Output Level control
  - Tape Monitor
 (Tape Monitors can be used with Video / CD / DVD / VCR / DAT / iPod / MP3 / XM / SIRUS CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
  - EQ defeat / bypass
  - Sub-Sonic Filter built-in to reduce turn-table and speaker rumble


Yamaha EQ-500U Specifications:

 # Channels: 2 (stereo)
 # Bands:
10 / Channel
 # Cut / Boost dB's:
12±
 Frequency Response:
10 to 35kHz
± 0.5dB
 Maximum I/O level:
>7V RMS 20-20kHz
 THD:
0.005% @ 1V output, 1kHz
 Hum and noise A-weighted:
105 dB w/ input shorted @ 1V output
 Subsonic filter:
12dB / octave, 15Hz
 Input Sensitivity / Impedance for ‘Line’ at 1 kHz:
1V / 47k
Ω
Mic Input Sensitivity / Impedance for ‘Line’ at 1 kHz: 0.3mV / 47kΩ
 Output Level / Impedance at 1 kHz:
1V / 600 Ω
 Pink Noise generator output: 150 mV RMS
 Pink noise frequency response: over 20 to 20,000 Hz,
± 2dB RMS

This Yamaha EQ-500U looks like the day it was made. Beautiful! Great performing and sounding EQ. LED's in the end of each band indicates EQ is engaged. Unit is in great shape. We have completely gone through this unit and tested all functions. It works and sounds GREAT! Use with good quality microphone with 1/4" plug. Best with Condenser type mic (mic not included). Comes with an e-copy, of the Yamaha EQ-500U owner’s manual. Measures 17.25" wide x 9.25" deep x 4" high and weighs 8.5 lbs unpacked. Includes our 90 day limited warranty.
YAMAHA EQ-500U GRAPHIC EQ
Cond. 9

(C) R.R.
SOLD
4/19/13
SHIPPED TO TEXAS


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)
 
 
We strive to make sure that all of our clients get the best usage of all the gear we sell. We strongly suggest that purchasers of our EQ's with pink noise generators and spectrum analyzers call us for advice on proper and full use of these types of equipment. We will be more than happy to walk you through the connection, set-up and use of this and any gear we sell. An EQ / Pink Noise Generator / Spectrum Analyzer is one of the greatest "tools" available for any stereo system, but only if utilized correctly.
 
 
 

       


        NEW LISTING 4/18/13
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty

BSR 10-BAND STEREO EQUALIZER
BSR EQ-110X STEREO GRAPHIC EQ / EQUALIZER
#...8361
Circa 197
7-82
SOLD
9/15/13
SHIPPED TO MISSOURI

ü  Our technician has completely gone through and 'Certified' this unit.

ü  Everything was completely tested and benched.

 
ü  Unit was disassembled for restoration / reconditioning.

ü  Both rotary potentiometers cleaned for quiet operation.

ü  Most I/O jack and fader solder joints re-flowed for trouble-free service. 

  
ü  Tape monitor and Attenuator switch locks checked for proper function.

ü  All 'latched' switches locking fine.

ü  We checked and replaced lamps where needed.

ü  We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect.

ü  It was then cleaned inside and out.

ü  All inputs tested and both side produces clean and even sine waves (checked with AF gen and oscilloscope)!
All functions tested for perfect operation. No power supply hum of any kind. It's dead silent!
 Unit is clean both cosmetically and sonically. Looks and sounds great!

Great performing, Dual 10-Band, BSR EQ-110X, Stereo Equalizer. Classic 'Brushed-Silver' face with LED terminated faders. Each band features +/- 12dB!

BSR EQ-110X Features include:

- 10 Bands per channel ('One-Octave EQ')
- 60mm 'Long Throw' faders with +-12dB (most only do '10dB')
- Separate Left and Right EQ Frequency centers are at 31Hz, 62Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8Khz & 16kHz
- LED lit faders
- EQ Recording function to imprint tapes / CD's / DAT's / Hard Drive with EQ curve for playback on a car stereo or to allow for deficiencies in speakers (personally not really a feature I would rely on much for a number of reasons)
- Dual Tape monitors  (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
- Dual 7-Segment, Vertical LED output level indicators / display w/ separate level controls
- One un-switched AC convenience jack located on the back rated at 200 Watts

Again, our tech has completely gone through this unit and 'certified' it READY TO GO! Only very minor cosmetic wear. Looks and works great. Perfect compliment to most any audio system (except suckie, modern A/V / surround / 5.1 / 7.1 / BR549 / Home theater systems). Allows 'EQ Burn to Record' to imprint EQ curve into recordings if desired.
 Measures 16.5" wide x 7" deep x 4.75" high and weighs 7 lbs unpacked.
Includes our standard 90 day limited warranty.
BSR EQ-110X STEREO EQUALIZER
Cond. 8.5

(C) R.R.
SOLD
9/15/13
SHIPPED TO MISSOURI



(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)
 



 

 


 

     
Pioneer_SR-303_Stereo_Reverb_CBS_web.jpg (70799 bytes)   

 
Pioneer_SR-303_Stereo_Reverb_CBS_collage.jpg (265218 bytes)   

 NEW LISTING
12/5/12
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
VINTAGE PIONEER STEREO REVERB AMPLIFIER / DELAY
          SR-303 / SR303
SR-9 SR9
'REVERBERATION AMP' 

#...695M
  
"WORLD AC POWER"
MIJ

SOLD 1/29/13
SHIPPING TO OHIO

Our technician has completely gone through and 'Certified' this unit. Everything was completely tested
and benched. Unit was disassembled for restoration / reconditioning. Both rotary potentiometers cleaned for quiet operation. Most I/O jack and fader solder joints re-flowed for trouble-free service. Tape monitor and Attenuator switch locks checked for proper function. We checked and replaced lamps where needed. We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect. It was then cleaned inside and out. Only cosmetic issue is some very light, white 'spots' on the right end of the face that did not seem to want to be removed. Not really noticeable, unless you get the light angled correctly (see photos above). All inputs tested and both side produces clean and even sine waves! All functions tested for perfect operation. Checked with O-Scope. No power supply hum of any kind. It's dead silent!
 Unit is clean both cosmetically and sonically. Looks and sounds great!

....Again, we
have completely gone through it cleaning all pots and switches. All functions tested perfectly. Looks and sounds great! Measures 16.5" wide x 4" high x 13" deep and weighs 10 lbs unpacked. Includes our standard 30-day limited warranty!
 PIONEER SR-303 REVERB / DELAY
 Cond. 8.5+

SOLD 1/29/13
SHIPPING TO OHIO

 

 
Note: These units are really impressive when paired up, using one unit for reverb and one for some slight "slap-back" delay. While both effects are available on each unit, it's only one at a time. With two units you can get the full "LIVE" effect, just like in pro-audio systems!

 


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

 

 

   


 NEW LISTING 12/5/12
(Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty

PIONEER SG-9800 STEREO EQUALIZER
DUAL 12 BAND STEREO GRAPHIC EQ / EQUALIZER
#...872K

   "WORLD AC POWER"

Circa 1979-81
SOLD 12/13/12
SHIPPED TO MISSOURI

(The one with the LED's in each slider)
Our technician has completely gone through and 'Certified' this unit. Everything was completely tested
and benched. Unit was disassembled for restoration / reconditioning. Most I/O jack and fader solder joints re-flowed for trouble-free service. Tape monitor and Attenuator switch locks checked for proper function. We checked and replaced lamps where needed. We then tested both channels with a test tone and O-scope, analyzing both channels with and without each independent effect. It was then cleaned inside and out. All 'latched' switches locking fine. All inputs tested and both side produces clean and even sine waves! All functions tested for perfect operation. Checked with O-Scope. No power supply hum of any kind. It's dead silent!
 No scuffs / scratches or anything to mention. Switch / Fader caps all 'shiny' with none of the 'corrosion / patina' we commonly see on about 50% of Pioneer units (just FYI). Unit is clean both cosmetically and sonically. Looks and sounds great!

Sought after flagship EQ of the Pioneer "Golden Era". This is the EQ designed with the "Pioneer SPEC 1 & 2" system. Great looking Silver-Face Pioneer 24 band Equalizer (12 bands per stereo channel).
Pioneer SG-9800 Features include;

- 12 Bands per channel ('One-Octave EQ')
- 70mm 'Long Throw' faders with +-10dB.
- Separate Left and Right EQ Frequency centers are at 16Hz, 32Hz, 64Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8Khz, 16kHz & 32kHz.

- LED lit faders

 - EQ Recording function to imprint tapes / CD's / DAT's / Hard Drive with EQ curve for playback on a car stereo or to allow for deficiencies in speakers
 - Tape monitor  (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
 
- -3 & -6 dB input attenuator (useful for DJ, Studio, Live Sound or any application when used with stronger than normal line-level signals)
- Overload indicator for attenuator

 - One un-switched AC convenience jack located on the back rated at 100 Watts
 - "WORLD AC POWER"™ 50 / 60 cycles there is a 110V, 120V, 220V & 240V selector for use anywhere in the world!


Again, our tech has completely gone through this unit and 'certified' it READY TO GO! Looks NEAR NEW and works great. Perfect compliment to most any audio system (except suckie, modern A/V / surround / 5.1 / 7.1 / BR549 / Home theater systems)
 Measures 16 5/8" wide x 14" deep x 6" high and weighs 15 lbs unpacked. Includes our standard 90 day limited warranty.
PIONEER SG-9800 STEREO EQUALIZER
Cond. 8.5

(C) M.R.
SOLD 12/13/12
SHIPPED TO MISSOURI



(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)


 
 





         NEW ADDITION 5/29/10
 (Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes)  warranty
VINTAGE
FISHER GRAPHIC EQUALIZER STEREO 'OCTAVE'
       EQ-2322  EQ2322  
 #...3643
  Circa 1980-81 

  
*"WORLD AC POWER"
 MIJ 

SOLD 1/9/13
SHIPPED TO CALIFORNIA

  
We have completely gone through this unit, cleaning inside and out including all contacts, switches and controls, including the unique power / signal pass switch. All functions tested for perfect operation. All inputs tested and both side produces clean and even sine waves! No power supply hum of any kind. It's dead silent!  All inputs tested and both side produces clean and even sine waves! Checked with O-Scope. No power supply hum of any kind. It's dead silent!
  
____________________________

Very easy to use and quality Fisher 'Studio Standard' 10-band "combined" stereo, graphic EQ. The Fisher EQ-2322 covers the following frequencies: 31.5Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz and 16k. Each frequency also allows cut / boost of a full 12 dB (most home EQ's are only a maximum of 10 dB + or - ).
Features include:

- Stereo Shared 10 graphic bands
- 1 Octave centers

- EQ defeat
- EQ Recording function to imprint tapes / CD's / DAT's / Hard Drive with EQ curve for playback on a car stereo or to allow for deficiencies in speakers.
-
Tape Monitor  (Tape Monitors can be used with Tape / Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc) Dubbing can be used with CDR (CD recorders) units)
- AC convenience outlet on the back panel (un-switched @ 100 watts capacity)
* Semi "WORLD AC POWER"™  50 / 60 cycles

Original Specs:
 
 # Channels: 2 (stereo)
 # Bands: 10 (combined L&R)
 # Cut / Boost dB's: 12±
 Max Output (RMS V): 10

 THD: 0.01% @ rated output, 20-20kHz
 S/N A-weighted: 110 dB


This is a good looking and performing EQ. EQ built using super quality, de-tented linear controls  with 55mm throw. Again we have completely gone through cleaning it & checking all functions. All controls and switches cleaned for worry-free service. Measures 16.5" wide x 13" deep x 3.25" high and weighs 9 lbs unpacked. Includes our standard 90 day limited warranty.

FISHER 'STUDIO STANDARD' EQ-2322
  Condition 8.5

SOLD 1/9/13
SHIPPED TO CALIFORNIA


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details)

 

    



NEW LISTING 4/19/13
 (Click on above thumbnails to enlarge photos)
CheckMarkSmall_web.jpg (792 bytes) warranty
PRE-OWNED
RADIO SHACK / REALISTIC 42-2105
REALISTIC TAPE CONTROL CENTER
TRIPLE INPUT / OUTPUT TAPE MONITOR / TAPE INPUT SELECTOR
SIGNAL-PROCESSOR SELECTOR

SOLD 7/3/13
SHIPPED TO NEW YORK

Very versatile unit allows selection between up to 3 tape decks (Reel to Reels, Cassette Decks, 8-Track Decks, DAT's, CDR's, iPod's, MP3 Players, DVD Players,  Audio etc.) or up to 3 Audio Signal Processors (Reverbs, enhancers, delays, dynamic processors, EQ's etc.)

ü  Connects easily to the ‘Tape-In’ / ‘Tape-Out’ jacks on your existing Stereo Receiver, Pre-Amp or Integrated Amplifier. If you don’t have a ‘true’ tape-monitor or ‘tape-loop’ you can also connect it simply to an input. You just won’t have any ‘record’ capabilities.

ü  ‘Triple’ 'TRUE' tape monitors (Tape Monitors can be used with Tape decks such as Cassette Tape Recorders/ Players, Reel to Reel's, 8-Track Tape Cartridge Decks, Video / CD / DVD / VCR / DAT / MP3 / iPod® / iPad® / iPhone® / iTouch® / iGadget / MP3 / XM® / SIRUS® CDR (CD recorders as well as for inserting signal processors, such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc)

ü  ‘Bi-Directional’ Dubbing / Copying from one deck to another

ü  Can also be used to connect ‘Signal Processors’ such as EQ's, Reverbs, Spatial Enhancers / Dynamic Processors, Noise Reduction units, Special Effects units, Time Delays, etc, instead of ‘Source / Record’ devices

ü  Inputs could be used for turntables with the addition of a simple ‘phono pre-amp’ available here…

ü  Completely ‘passive unit, meaning no ‘power’ or ‘power supply’ required for operation

ü  Toggle Switch routing eliminates the hassle of ‘swapping’ patch cables and cords.

ü  Easy to connect and use!


All functions test great. These are great "tools" to have in any audio rack. Greatly enhances the versatility of most audio systems. The unit works and looks great. Measures 6.25" wide x 4.75 deep x 2.25" tall. Includes our standard 90 day limited warranty!
REALISTIC 42-2150 TAPE SWITCHER / SELECTOR
SOLD 7/3/13
SHIPPED TO NEW YORK


(Above text, in it's entirety, property of www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright Information' page for details) 





NEW LISTING 7/2/10
(Click on above thumbnails to enlarge photos)

CheckMarkSmall_web.jpg (792 bytes) warranty
PRE-OWNED

MONSTER
"POWERCENTER"
              HTS-2500 MKII
HTS2500 MK II

AC POWER CONDITIONER / SURGE PROTECTOR

for sale
We have just had our tech go through this unit. When it came in it had the Monster 'death beep' as most used one's do. He was able to

Click here for more info...

 

 


 
  


**
"(actual as measured)" refers to original test results done by Hirsch-Houck Laboratories upon test release of product when new. Current "aged" specifications / performance may of course vary from that.

 

 


 


 

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