Audio Proz Service and Sales


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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Korg SDD-2000

Audio Proz Inv #: 27124

Sampling delay. 4 second delay. Interesting modulation effects and delay, vibratos, etc. Cabinet scratched up but in excellent low use condition inside. All cleaned and serviced.

"I like these machines but I persue them with some hesitation now because I find so many in such poor condition as to make servicing unviable. If I were to resell a properly serviced machine it would cost $300 now. To be honest though, there have been breakthroughs in technology whereby the new effects units by Behringer, Zoom, and Electro Harmonix all do these same tricks with better, more reliable performance (and they are cheaper!) I personally use the Behringer EM600 echo machine which can even emulate tape echoes but with a quieter noisefloor, better bandwidth, and in stereo too (for $50)! If you are hellbent on staying old school, keep in mind I do still work on Effectrons and ADAs which are still $100 – 200. I understand that people like using these device for sentimental reasons so I am glad to help keep them running, but I must say that for functionality and use; better money is spent on the modern equipment." - Vince

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Deltalab Echotron ADM 4096

Audio Proz Inv #: 25411

Digital loop delay, delay factor and mix controls, input level and feedback controls, metrinome, infinity repeat

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Lexicon 93

Audio Proz Inv #: 13536

Stereo delay.

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Delta Lab ADM1020 Effectron I

Audio Proz Inv #: 43557

Unit has long echo, short echo, double, and flange settings. Level, Feedback, Modulation, Width, Speed, Output Mix controls, 2/4 input, output repeat and bypass. Excellent #9 condition, completely cleaned and recalibrated.

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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.


Lexicon PCM-70

Audio Proz Inv #: 27746

Single rack space vintage reverb/delay. Excellent condition, recently serviced, cleaned and QC tested. Low use hours, in box with manual. Other than minor bend in faceplate and rack rail scratches, good cosmetic condition. Version 1.2

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Lexicon LXP-5

Audio Proz Inv #: 42435

1/2 rack space pitch, delay, chorus, and multi-fx processor. 8 user-savable patches. Input, mix, output plus 2 FX parameter control knobs. Stereo 1/4" in/out. Midi syncable (in/thru, switchable thru/out), footswitch jack. 9v wall-wart PS included. Fully inspected and cleaned. #9 condition, studio use.

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Lexicon PCM91

Audio Proz Inv #: 42310

Version 1.0, fully loaded with programs. Fully cleaned and inspected, battery still good. Unit has very low use time. Includes power cable and all original box, packing and manual. #9 condition.

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Mic Mix XL 210 spring reverb

Audio Proz Inv #: 28103

Two channel/damped box 3 spring reverb. very tight plate like sound. modified and aligned all springs and tuned for best resonant/channel matching. phone in/out.

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Roland SRV-2000

Audio Proz Inv #: 28090

Single rack space digital reverb unit. Mono in, stereo out, MIDI controllable and footswitch controllable. Input pot repaired, connections cleaned, power supply cap replaced. Very good condition with some minor chassis dings and screw marks on rack ears. Bench tested, all functions OK. #8+ condition

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Deltalab DL-4 Timeline

Audio Proz Inv #: 28254

SN#1533 512 millisecond delay @ full bandwidth. Flanging/doubling/chorusing echo. Digital octave flanging. Infinite repeat, resonant and doppler effects. Excellent condition unit, owners original unit, some noise modification. Does automatic step through delay. This unit features some very novel modulation of digital delay with a VCO which can operate as a square, sine, or triangle wave. As well, it does granular time based shifting of the delay line (ie. constantly shifting digital taps off the delay line). Very cool. This machine belonged to the owner and has never been roaded or misused.

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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.


Lexicon Prime-Time 93

Audio Proz Inv #: 40592

Digital Delay, unit has ground mod and some updates. Very Quiet version. All cleaned, calibrated, adjusted. Excellent condition 8/9 out of 10.

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Yamaha SPX 90

Audio Proz Inv #: 27745

Digital reverb, delay, stereo echo, pitch change, chorus, stereo flanger, stereo phasing, tremelo, vibrato, symphonic, auto pan, ADR noise gate, freeze, compressor, and parametric EQ all in one box! Unit is in great condition with minor scratches on rack rails. All cleaned and tested. Comes w/ original box and manual.

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Realistic 32-1110a electronic reverb

Audio Proz Inv #: 40622

runs on 6 AA batteries or power supply, not included. microphone level delay, repeat, and depth faders. Rca line and 1/4" phone mono in/out.

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Orban/Parasound Model 111B

Audio Proz Inv #: 27295

Dual reverberation. Very good cosmetics, obvious ware, good faceplate. Fixed/floating limiting threshold, in/out attenuations, and bass/mid/sweepable EQ per channel. XLRs as well as barrier strips on back panel. Shortened/tightened springs for less muddy, brighter sound (tuned spring pans for ch matching). Altered input/output circuit to improve spring bandwidth and added spring dampers (foam) to reduce noise. Extra control added for high frequency enhancement, excellent for the "huge snare" sound. All switches and controls cleaned.

While great for its era, there are now similar units that do the sound imaging better than the 111b. The Behringer Edison or Ultra Fex, or DEQ2496 are all more sophisticated with better imaging correction, true stereo, etc and far more flexibility to reach into the depth of the mix. Low, mid, and highs can be separately adjusted.

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Alesis Midiverb III

Audio Proz Inv #: 41202

Excellent condition #9 condition, update powersupply, some mods done, this unit is quieter than regular midiverbIII.

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ADA Digitizer 4

Audio Proz Inv #: 41310

Programable delay. 1 space rack. #8 cosmetics. Modified to be lower noise floor, warmer echo and regeneration (more of the analog type sound. Call for details if interested.

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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


Boss DE-200

Audio Proz Inv #: 54634

Digital Delay. 1RU unit. Input level adjust, range & fine delay time, rate, and depth modulation controls. Feedback level, direct and delay output mixer controls. 1/4" I/O on face, 1/4" I/O for direct mix, invert mix. Fully serviced and working. Rhythm sync jack not replaced, road worm machine, #6 condition.

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Lexicon Jam Man

Audio Proz Inv #: 27456

Excellent condition, stereo jam/looping device, Upgrade to 32 seconds memory, manual footswitch.

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Yamaha SPX990

Audio Proz Inv #: 42388

Multi-fx processor. Rack mount unit, 1RU. Excellent algorithms and programs. Fully inspected and cleaned. #9 condition, excellent.

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Lexicon LXP-1

Audio Proz Inv #: 42440

Excellent reverb algorithms (6 variations including reverse!), plus delay and chorus. 1/2 rackspace, 9v wall wart PS included. Fully cleaned and tested, all OK. Stereo 1/4" in/out, midi in/out/switchable, 1/4" footswitch jack. Input, mix output, decay, and delay knobs. Light studio use, #9 condition. With manual.

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Mu-Tron 1173 Digital Delay Line

Audio Proz Inv #: 62431

The five Delay Select buttons switch between delay times ranging from 2.5 to 160 m/sec and the Delay Variation knob allows more precise fine-tuning.In addition to a straight delay, there's great thick doubling effects; with modulation you can create flanging effects, Feedback, Modulation Frequency and Modulation Depth knobs for additional sounds. You can control modulation via CV input, and there's also balanced XLR input. This is a modified unit with a 1/4" input on the face and two added selector switches

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Roland Space Echo RE-101

Audio Proz Inv #: 42995

With new tape and excellent condition heads. Completely cleaned and serviced, all mechanics, controls and switches cleaned and tested. Excellent condition, with 6 position switch, swells. All tolex cover excellent! #8+ condition.

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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.


Roland RE-150 Space Echo

Audio Proz Inv #: 42994

With 6 position switch, single or multiple speed echos. With new tape and excellent condition heads! Completely cleaned and serviced, all controls, switches, mechanics cleaned. Very minor edge tears in tolex, still in over all very good shape. #8+ Condition, very nice!

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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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