Audio Proz Service and Sales


Kenwood GE-5010

Audio Proz Inv #: 62651

Stereo Graphic EQ, Super quality JVC designed, 7 bands. Programmable unit with 5 memory settings. Blue fluorescent display with a black face. Spectrum analyzer with reverse and range controls. Tape line input, RCA in/out. Power supply and grounding modification to improve noise floor. Excellent condition, low use, fully serviced, QC'd, very "invisible" sounding EQ! #9 condition 

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Shure SR 107

Audio Proz Inv #: 62492

10 band (mono) Parametric EQ, single rack. Bizarre modification redesign by A.P. owner to make into 10 Harmonic Equalizer to create 2nd and 3rd harmonic enhancement XLR and 1/4 in/out. 1/4 Aux out can change the timbre of any signal. Engineering model #8 condition 

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Bose 901 Series IV

Audio Proz Inv #: 62478

Active equalizer. Completely rebuilt, updated for improved performance. Replaced all IC's with TL072, New filter caps on power supply (1000uf/25v), new caps on equalization circuits 22uf/25v NPS. Used good condition, small chip on left corner #9 condition  (We repair/ service this as well as the other version BOSE Eq. )

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Ashly GQX Model 1502

Audio Proz Inv #: 61522

Stereo 15 band Graphic EQ  Rack Unit   Channel 1/ Channel 2  Gain and Ch 1 / Ch 2 EQ by pass switch     1/4" and XLR inputs/outputs  Nice simple layout, good condition, faceplate looks great . Cleaned and tested   #9 Mint Condition  

$ 268  Contact Us  

Yamaha GE-60

Audio Proz Inv #: 61273

10 band eq with spectrum display, audiophile quality, blackface, mic input, pink noise, (no mic), long throw faders, missing 4 knob caps, all clean/test, #8+

$ 288  Contact Us  


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We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock. 

Customers outside of the US, please note that international shipping can be costly (US Post $16 minimum - up to 8oz or 226g). We are glad to combine orders to reduce shipping costs. Take a look at our shipping policies for more information and estimates of prices and shipping time.


Optimus 10 Band EQ

Audio Proz Inv #: 61032

Model 31-2025, decent quality design, 2 tape dubbing, image expander circuit to improve stereo ambient field, slim line, very good low noise design, good RCA connector, low use, all faders, in excellent condition, complete service / clean, #8

$ 166  Contact Us  

Orban 672A

Audio Proz Inv #: 60672

3 rack space 8 band EQ. Has quality DB faders, tuning controls for every 150Hz of standard 20 to 20K spectrum, range switches, and Hz filtering for high and low power ins and outs. Very minor wear, overall good cosmetics. #8 condition

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Realistic 31-2010

Audio Proz Inv #: 60229

12 Band stereo Frequency equalizer. *IMX stereo expander. 2 Tape monitor channels dubbing. Well done design. Clean all controls (silver), #8+ Condition.

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Wheatstone 4100C

Audio Proz Inv #: 60129

Parametric Equalizer-Preamp. Individual frequency, Octaves, DB controls. Master gain control. Functionally great condition, cosmetically good condition, minor wear on top and bottom chassis, #8+ condition.

$ 200  Contact Us  

Kenwood GE 800

Audio Proz Inv #: 59587

9 band EQ with nice spectrum display. Reverse EQ +- 12db or +- 6db range. All cleaned and calibrated. Some controls a little sticky due to cleaning. Condition #8+

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Audio Source Model EQ Eight/Series II

Audio Proz Inv #: 59429

Graphic equalizer and spectrum analyzer, EQ Rec, Monitor, Audio/Video, Pass/EQ controls. Better Version EQ is serviceable. All controls clean. #8+ condition

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We keep our database up to date with almost 10,000 items in stock. If you see a part number and a price, we have that item in stock.


DOD 431 Series Graphic Equalizer

Audio Proz Inv #: 58705

7/10 condition. 1 space rack mount. (A few broken fader switches, some cosmetic issues.)

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Teac EQA-10

Audio Proz Inv #: 58226

10 Channel, Slim Line, Black, 1 Tape Monitor, 2 line in, Display. All serviced low use, #9+.

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ART EQ341

Audio Proz Inv #: 57765

Dual channel 15 band graphic EQ. *Single rack space. Balanced XLR Ins/Outs, unbalanced RCA Ins/Outs +/-6db or +/-12db levels. Level and bypass per channel.  3 year warranty New in Box  Call for better pricing 

$ 148  Contact Us  

Bose 901 and EQ

Audio Proz Inv #: 57722

Bose 901 Series I Speakers, the original, and EQ. EQ is in virtually unused condition, but the connectors have typical oxidized RCA. Use tight RCA and it is no problem.

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Furman SG-10 Equalizer

Audio Proz Inv #: 57609

5 band sweep EQ with high/low level inputs/outputs 1/4" TRS. Modified power supply, upgraded capacitors, RF ground wiring upgrade, high/low phone jack inputs modified to allow 2 signals to be mixed in. Super accurate controls, used as shop owner's personal mastering EQ. Condition: 9

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ADC Sound Shaper Ten

Audio Proz Inv #: 56569

20 band stereo cap and coil equalizer. Black face with handles. Left/Right meter control, Line/Rec, Bypass/EQ controls, Tape 1/2 monitor. Faders have red LEDs, RCA in/out. This is an excellent unit with low hours use, and has been fully tested and serviced. Condition: 9

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We are presently operating on an APPOINTMENT ONLY basis. Please call us first at (617) 926-8020 to schedule an appointment before you come into the shop for repairs, rentals, product recommendations, consultations, or anything other than minor purchases.


Sundholm 2100

Audio Proz Inv #: 56402

Two channel graphic equalizer. 10 bands. XLR and 1/4 inch in/outs on back. 1 rack unit size. Black face, LED -20 +10 indicators. Audiophile grade design and components. Low use, minor blemishes on top cover. Scratch on bottom. AP MOD RF supression/noise floor. 9/10 condition.

$ 280  Contact Us  

Furman SG-10 Graphic Equalizer

Audio Proz Inv #: 56079

Sweep graphic equalizer. Mono/Stereo, 5 band, lo cut switches for left and right, input level controls. Black face with red knobs. Tiny scuffs on face, low use unit. Engineering sample, AP mods: Power Supply, improved grounding/shielding, Mid/Hi filters. Condition #9.

$ 380  Contact Us  

SAE 1800

Audio Proz Inv #: 55358

Solid State Stereo Parametric EQ. Equalizer only. Channel A/B fader controls. Level/Frequency/Bandwidth Lo-Frequency. Level/Frequency/Bandwidth Hi-Frequency. -70 to 0db attenuator. Line in/out, EQ rec-tape-play, EQ defeat, Line out buttons. Brushed black aluminum blackface rackmount. Like new, very minor scratches/scuffs on left side of face. Low hours. 9/10 condition

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UREI537

Audio Proz Inv #: 55212

Model 537. One-third octave equalizer. 27 band fader controls, EQ in/out switch, gain control, 2U space rack unit. Silverface. Terminal style connectors. Face is good condition, one minor 1 inch scratch at right edge. Faders have typical stiffness, have been cleaned, can be further cubed. Faders, caps, lettering all intact. 8+ condition. * Cap and coil * -Call us, we can restore your Urei!-

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UREI 535

Audio Proz Inv #: 55211

Dual graphic equalizer. 10 bands per channel. EQ in/out, overload LED, gain control per channel, barrier cable connectors, fader style EQ, TRS output, 2U rackmount silverface EQ, ringy filters, TLO 74, balance line terminal strips. 600 ohm transformers. Controls refurbished, low use. 8+ condition.

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Aiwa GE-80

Audio Proz Inv #: 55197

7 band graphic equalizer, for use with Aiwa Micro System. Click button LED style interface. Equalizer/Tape, line selectors. Line in/out RCA for amp and tape. Fully serviced, with the original manual.

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Customers outside of the US, please note that international shipping can be costly (US Post $16 minimum - up to 8oz or 226g). We are glad to combine orders to reduce shipping costs. Take a look at our shipping policies for more information and estimates of prices and shipping time.


GLI 1500 Bi-FET Dual Channel 10 Band EQ

Audio Proz Inv #: 54911

GLI 10 Band EQ - 12db gain bands with EQ Bypass and main input.   Aux in and Tape in -2 rack space 2.25" height -#8+ Condition (see Vinc)

$ 188  Contact Us  

MXR No. 171 Dual 15 Band EQ

Audio Proz Inv #: 54885

MXR 15 Band Vintage EQ. Later Version with 5532 opamps in highbands -Excellent condition faders, no wear -Unit has low use but has slightly bent rack ear and small scuffs at bottom corner -#8+ Condition

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