Audio Proz Service and Sales


Roland SYS-505 and manual

Audio Proz Inv #: 46878

Version 2.0 Library Converter discs for Roland S-50. Includes SYS-505 library convert disc, SYS-556 System Disk, and SYS-505 owner's manual. Discs are 3.5" floppies. Excellent #9 condition in original, shopworn, packing.

$ 14  Contact Us  

Roland SP-808 Groovesampler

Audio Proz Inv #: 27837

W/zip drive, real time fx, d-beam control, 8 channel recorder/mixer, 3 band EQ, Mic Input, Minor Scratches on unit.

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Roland SP-700 16-Bit Sample Player

Audio Proz Inv #: 61700

16-bit sampler, Every memory card is stacked, Unit powers on and receives MIDI signal, cycles through all functions, works, just unable to check for sound out because no volumes loaded into banks, Unit came from studio, reported fully working, Some rack rash and minor wear, cosmetic condition good, Condition #8

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Roland SP-404SX

Audio Proz Inv #: 57935

Unit eradicated not in stock. Failed machine, unknown electronic problem. Just no function. Excellent cosmetics, no power supply. 7/10 condition.

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Roland Sound Cards

Audio Proz Inv #: 13135

Contemporary Percussion, Ethnic Percussion

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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.

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.


Roland SC-155

Audio Proz Inv #: 19834

Keyboard Voice Box - 16 channel multi patch sound canvas with fader control to adjust parameter, midi, cleaned and serviced. 

$ 175  Contact Us  

Roland SBX-80

Audio Proz Inv #: 42837

Sync Box, analogous to MIDI MTC, used to sync MIDI sequences to tape. SMPTE/Audio in. 117/220 volt. Has internal switch for NTSC or PAL video sync. With two prong power cord and manual. Original box and packing.

$ 200  Contact Us  

Roland S-760 Digital Sampler

Audio Proz Inv #: 28248

With mouse, zip 100 drive, cd rom drive and cabling. unit in excellent cosmetic condition. unit can be used with midi control. completly serviced and inspected, 32 mb ram upgraded. Rear Panel: Ext cntrl connector, D out 1+2, D in, Vinceo, SCSI, MIDI Out/Thru, MIDI in, 1/4 STR.

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Roland S-760 Digital Sampler

Audio Proz Inv #: 61774

Roland S-760 Digital Sampler. Power supply shows low use time, back panel connectors are good, unit recently tested, system floppy disc included, and comes with many sounds pre-loaded. Unit has video expansion card installed, which has not been tested. Encoders cleaned. Condition #9.

$ 260  Contact Us  

Roland S-50 Digital Sampling keyboard

Audio Proz Inv #: 28523

Unit turns on, but no display May need manual and boot disk

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Roland RC-100

Audio Proz Inv #: 28512

Remote for Roland S series samplers. S-50, S-330, S-550, etc.

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FYI, Around the database you will often see us describe the condition of units on a scale of 1-10. #10 would mean the product is new from one of our suppliers, such as Behringer, Audio Technica, etc. #9 means the product is in perfect condition but is used, #8 implies there are some minor cosmetic scratches but unit is mechanically perfect, and so on and so forth.


Roland PM-16

Audio Proz Inv #: 14708

Pad/Midi interface, table top unit, 8 pads + Bank pad, good cosmetic condition except for deep gouge on top.

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Roland PG-200 Waveform Controller

Audio Proz Inv #: 45711

For JX Series synthesizer. With original 6-pin cable included. Has some non-original knobs, otherwise excellent #9 condition.

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Roland PG-200 Synth Programmer

Audio Proz Inv #: 27735

For use with Roland JX-3P or MKS-30. Allows for the use of sliders and knobs with digital parameters. Excellent condition.

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Roland PG-10 Linear Synth Programmer

Audio Proz Inv #: 43591

MIDI in, out, thru. Cool vintage unit! No cable included. 8/10 condition.

$ 98  Contact Us  

Roland Octapad PAD-8

Audio Proz Inv #: 42876

8 pad Midi trigger. Midi i/o. With original power supply, manual and box. #8 condition- obvious wear on pads, but chassis and all mechanics and connectors in excellent shape. Needs basic cleaning, labels/ stickers from previous user still on unit.

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Roland MT-32

Audio Proz Inv #: 16515

Multi timbre sound module, very flexible older sound module, loaded with durms keys, easy to use, in like new condition complete with box/packing, manual, and AC adapter

$ 175  Contact Us  


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


Roland MPU-104

Audio Proz Inv #: 42835

Midi Input selector, 5 in, 1 out. Passive box with no power supply. LEDs light with use of boss PSA 120 supply or equivalent power supply can be made available upon request. Cleaned. #9 condition.

$ 68  Contact Us  

Roland MPU-101 MIDI->CV interface

Audio Proz Inv #: 15421

Midi to CV converter for controlling analog synths via midi

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Roland MKS-50

Audio Proz Inv #: 48399

Rackmount synth module with power cable and manual. Excellent #9 condition with very minor scratches on edge. Very low use time.

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Roland MKS-30 Sound Module, PG 200 Programmer

Audio Proz Inv #: 37901

6 voice sound, with live time control PG-200 Box! Low use time. This is the last unit left (Vince's personal unit), only used occasionally in home studio environment, mint condition. $600 for the pair

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Roland MKS-30 Sample Sound

Audio Proz Inv #: 44921

Memory cartridge M-16C. Great #9 condition.

$ 60  Contact Us  

Roland MKB-200

Audio Proz Inv #: 22561

MIDI keyboard controller. Slide controls for depth, rise time, volume. Pitch bend control. A and B bank - program change/patch change options. Cartridge slot, 3 midi out, U and L damper, up and down shift, mode on, U and L volume inputs. Very good condition.

$ 240  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.


Roland MC307 Groovebox

Audio Proz Inv #: 31622

Integrated electronic music workstation (sequencer/sound module) with 64-voice sound engine, 16mb of samples, 240 patterns, 3 fx processors, this product is aimed squarely at DJs, pitch control slider, push and nudge buttons, designed to emulate the operation of a turntable.

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Roland MC-909

Audio Proz Inv #: 44858

Left listing up because we may possibly be able to repair these, and may be able to get power supplies. Sampling Groovebox. 64-voice workstation with 16-track sequencer and hundreds of sounds, patterns, and rhythm sets.

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