Audio Proz Service and Sales


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  

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  

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  

ART DMV-Pro

Audio Proz Inv #: 31553

New in box, dual processor, true stereo multi-effects, 4x mono channel! **New Low Price!**

$ 230  Contact Us  

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  


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


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  

DeltaLab ADM 456

Audio Proz Inv #: 46257

Three delay lines in one rack unit, in series, parallel, or stacked for an acoustic time correction. 5,10,20,40,80 millisecond increments, up to 160ms total possible delay. Great for sound reinforcement in a church, hall, etc. Like new, mint condition.

$ 248  Contact Us  

Biamp MR140

Audio Proz Inv #: 46261

Spring reverb with 4-band equalizer. Special modification to improve signal to noise and dynamic clarity of spring resonance and chassis dampening. Very good condition. This mod is also available for your spring reverb look here for more info: 

$ 260  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  

Yamaha R-1000 Digital Reverb

Audio Proz Inv #: 72299

3 Band EQ, Mono Reverb. Very nice unit with only minor signs of use. This was Yamaha's design to compete with the Lexicon PCM 60 (Owner thinks Yamaha is better design). Light scratching on top/ bottom/ rack ears. Face, knobs, and rear connectors are in excellent shape. #8+ Condition

$ 288  Contact Us  

Yamaha R-1000 Digital Reverb

Audio Proz Inv #: 72700

Digital Reverb, 3 band eq, mon reverb, missing front panel bushing for power switch, cleaned and calibrated. This was Yamaha's design to compete with the Lexicon PCM 60 (Owner thinks Yamaha is better design) Unit is in excellent condition with only minor cosmetic markings. Some scratching around rack ears and top/ bottom panels from being put into and out of racks. #8+ condition

$ 288  Contact Us  


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


Pioneer SR-202W

Audio Proz Inv #: 62610

Reverberation amplifier, Reverberation time delay adjustment. Record mode on/off. Excellent condition, wood case, vintage unit -display flashes level of reverb. Mint #9 condition

$ 288  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  

Next! DJS-24

Audio Proz Inv #: 29782

24 bit digital sampler, 8MB memory upgrade installed, 66 seconds, original list with upgrade: $648

$ 380  Contact Us  

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