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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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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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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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
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+
We offer expert time-saving advice on repairing many types of home and studio equipment, as well as consulting for product and recording issues, at a fair and reasonable cost. For complex matters, we sometimes must charge a small technical fee. If we can help solve your repair problem or technical conundrum, give us a call. (617)926-8020.
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
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
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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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.
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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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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If you are having trouble finding parts, enter the name into our search bar at the top of the page. Please be aware there is a minimum $4-$6 to ship any part. International orders will be $14-$16 to ship for anything larger than an envelope. Shipping costs are non negotiable, so please, PLEASE do not ask for a part, or for us to search for, or quantify a part if you cannot pay for the shipping.
7/10 condition. 1 space rack mount. (A few broken fader switches, some cosmetic issues.)
10 Channel, Slim Line, Black, 1 Tape Monitor, 2 line in, Display. All serviced low use, #9+.
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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
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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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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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 have been selling and repairing professional and consumer audio equipment for over 40 years. (Read some of our customers testimonials here).
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.
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.
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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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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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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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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Local customers, please do not come to the shop without calling ahead first - (617) 926-8020 - for an appointment, so that we can more efficiently help you with your equipment or sound recording needs.
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)
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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