Audio Proz Service and Sales


GLI Pro EF-256

Audio Proz Inv #: 31765

Multi-effect/reverb, great for synth studios, unusual modifications done-call us for details

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GLI Pro EF-256

Audio Proz Inv #: 49045

Multi effect processor unit, similar to 1990's era ART reverbs. Preset multi effects, front panel level controls, XLR/phone/RCA i/o. Hum shield installed by AP. New.

$ 220  Contact Us  

GLI EF256

Audio Proz Inv #: 51883

Multi-effect unit with true stereo processing, modified by AP for limiting and lower noise. Flange, echo, and reverb effects. Mic and line inputs; XLR, RCA, and phone outputs for many signal routing options. Very good condition.

$ 240  Contact Us  

GLI EF 256

Audio Proz Inv #: 43198

Modified and improved by AudioPro! Modified stereo reverb, EQ mod, low noise mod, vactrol limiter mod, circuit gain mod, transformer power supply mod. 256 multi-effects pre-programmed-- flange, echo, reverb, etc. XLR/RCA/phone ins/outs.

$ 300  Contact Us  

Fostex 3180 dual channel spring reverb

Audio Proz Inv #: 43824

Stereo spring reverb, nice clean/warm reverb character, slightly long decay, long 3 spring pans for each channel, highest quality spring pan and unit uses a high power coil drive for tight bass control, also uses time delay/predelay into reverb pan for improved stereo field density of reverb. Front and rear inputs (1/4" front, RCA phone rear), mix and dry level controls, complete cleaned controls and calibration. No rack ears, but possibly avail (please inquire for details).

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Need your guitar or bass amp tuned up? We are now doing repairs, upgrades, and modifications to all types of guitar amps. Orange, Mesa Boogie, Fender, Marshall, Hughes and Kettner, Peavey, Ampeg, Gibson, Silvertone, etc. Read more about it here


Eventide H969

Audio Proz Inv #: 52515

Multi function, pitch shifter, delay, flanger, big digital display, old school grainy pitch shift. But clean delays, XLR in/ outs. Case has many scratches on top but low use all internal board connector checked, re-soldered. 8+ condition.

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Electro-Harminox 2880 super looper

Audio Proz Inv #: 39792

with power supply

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Electrix Repeater with mods

Audio Proz Inv #: 33152

with modifications, modest used time; see here for details

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Electrix Repeater with mods

Audio Proz Inv #: 33153

with modifications, modest used time; see here for details.

Please note: only specific and slightly rare "CFC" memory cards can be used with the Repeater. The power supply is also rare, and at times only an expensive "industrial grade" power adapter ($100+) may still be available. Because of this, getting a whole package together can be expensive. The modification, CFC card, and power supply might total $300+.

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Electrix repeater looper

Audio Proz Inv #: 60978

SN 4003. 1.10 with power supply. Power supply modification, all noise ground mods done. Low use. #9 condition.

$ 880  Contact Us  

Electrix Repeater

Audio Proz Inv #: 43337

Bad controls, bad condition power supply, corrupted grounds. Needs parts and repair. Not for sale

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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.


DOD R848 Reverb

Audio Proz Inv #: 57627

Unusual extremely wet sounding reverb; has a special noise reduction compressor system, which makes the reverb have less dynamics and "splosh." AP modified to improve reverb signal and mix level to be very smooth, glassy sounding, louder, excellent for voice and guitars, synth strings, cellos. Unit has multiband EQ and analogue pre-delay bucket brigade 8 spring reverb design. Condition: 9 Although sold, we can still offer expert service on these machines!

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DOD "Digitech" TSR-12

Audio Proz Inv #: 19997

Studio reverb/multi-effects processor, true stereo (well built), midi control, sampler, I/O attenuators, full bandwidth, 24 bit signal, 48 bit processing. Near perfect, low use condition. I was a Digitech dealer years ago. This unit is as new, used occasionally in my home synth studio. It has minor update to correct signal level into reverb DAC. It now can do +14dbm operation with 6db better noise floor. Most Digitech products of this era were IVL based designs, truly a remarkable reverb which bettered Lexicon for the money spent. It does some excellent multi effect, multi tape echo, flanging etc. with wide enough bandwidth, dynamics to be effective on my concert grand piano, etc. Most pros didn not give digitech enough credit. Very reliable machine.

$ 220  Contact Us  

Digitech Vocalist II

Audio Proz Inv #: 19945

Works off keyboard to midi change key signature, midi in key change, with ac cord and manual. (V)

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Digitech Studio V2 Quad

Audio Proz Inv #: 18525

Like new, very low use machine.

$ 150  Contact Us  

Digitech STUDIO QUAD v2

Audio Proz Inv #: 62161

Super quality, 4 channels of configurable effects, pitch, shifting reverb with endless combinations and nice easy view display with lots of programing. Minor back scratches. #9

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Digitech RDS7.6

Audio Proz Inv #: 23899

Digital delay- calibrated by AP

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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.


Digitech RDS3.6

Audio Proz Inv #: 24871

3.6 second delay with variable controls, foot switchable, modified power supply for lower noise. **New Low Price!**

$ 220  Contact Us  

Digitech RDS2001

Audio Proz Inv #: 23839

Digital delay

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Digitech RDS 7.6 Time Machine

Audio Proz Inv #: 47119

Delay / Sampler single rackspace unit. Up to seven seconds of delay with modulation effects. Optional foot pedal control of delay and modulation. Excellent #9+ condition, no scratches, with original box and manual.

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Digitech RDS 3.6

Audio Proz Inv #: 48388

3.6 second delay with all analog controls for effects. AP modified for optimum delay fidelity, feedback circuit changed to allow infinite and overloaded feedback, delay time range widened for greater control, unit switches between long and short delay settings. Back panel has complete set of control in/out jacks. Unit does 220/110vAC. Excellent #9+ condition.

$ 240  Contact Us  

Digitech RDS 1900

Audio Proz Inv #: 43433

Modified and improved by AudioPro! Bypass/Repeat Hold, 2-second delay, VCO in, guitar/line level in. With variable gain limiter circuit. Modified for super echo fidelity- 6 to 10 repeats before soft break up. Grainy, lofi echoes are also possible. Modified low noise op amp and power supply. Dry out is effects loop into feedback when "Invert" is switch on! #7+ condition.

$ 280  Contact Us  

Digitech GSP5

Audio Proz Inv #: 13940

Multi-effects processor, 5 effects, very quiet/clean, great solid state and distortion sound, echo and chorus delays

$ 150  Contact Us  


All Remotes are now 25% off or Free Shipping!!!  (Reel to Reel remotes excluded).


Digitech DSP-128

Audio Proz Inv #: 21479

Multi-effect digital reverb, stereo 1/4" ins, stereo dry output and stereo mix output, -20-+4 instrument/line switch for input and output, MIDI in/out/thru, can take mic in, modified-call us for details

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Digitech DSP 128

Audio Proz Inv #: 22639

Stereo in/out, MIDI in/out/through, delay and reverb processor. Does great spacial effects, long delays, repeats, reverbs, flanges. Can also be used with mic input for vocal effects. Excellent condition item from Vinces studio.

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