Audio Proz Service and Sales


Gallein-Krueger 400 RB

Audio Proz Inv #: 56215

200 watt bass amp with power cable. 1/4" input with -10db button. Volume/ 3 voicing filters/ treble, hi-mid, lo-mid, bass tone/ boost level with footswitch jack/ master volume/ 2 1/4" speaker outs 4 ohm/ direct out/ send, return on back. AP mod improved filtering capacitors grounds. Black with grey control panel. Minor marks around edges, covers. Low use, fully serviced. Has AC cord.  No rack ears (carry strap one side). 8+/10 condition.

$ 336  Contact Us  

Phase Linear 1000

Audio Proz Inv #: 56265

Auto correlator noise reduction system with Rev 6 modifications, low noise TLO75 IC update, some capacitor update. Dynamic range recovery system. Wood case, vintage knobs. Low frequency calibration. 9/10 excellent condition.

$ 388  Contact Us  

ADC Sound Shaper Ten

Audio Proz Inv #: 56569

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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KLH TNE 7000A

Audio Proz Inv #: 57213

Phonograph de-click and pop reduction device. Rack mount, Rev 5 modification, TLO75 Op amps,  Nice Face. condition #8+

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Otari 5050 B-2HD

Audio Proz Inv #: 57447

2 track 1/4 record play. Has switch on top of head with internal speed switch - does 15, 7 1/3, 3 3/4 (internal switch reset motor speed). Has old side Otari press fit hub adapters. Heads are 75% good. Unit has been cleaned and calibrated; we re-soldered the power supply board and motor board; calibrated to semi-pro level for use with all kinds of tapes. All mechanics are good. Better side boards. Face cosmetics are nice. Overall, there is obvious wear all over, but this is a good performing machine. #8- condition

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Please be aware that there is a minimum $4-$6 to ship any part.


Presonus Eureka

Audio Proz Inv #: 57492

Transformer coupled class A preamplifier. Variable input / instrument input, compressor, parametric EQ. Very low use, minor rack rash. Can be updated to remove SMD caps + replaced with better caps input/output balancing line caps.

$ 300  Contact Us  

Furman SG-10 Equalizer

Audio Proz Inv #: 57609

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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ART PRO MPA II

Audio Proz Inv #: 57640

Two channel Mic/HiZ. M/S Matrix. Variable input Impedance. Variable plate voltage. QC- Lubed, Burn-in, switches exercised. #10 Condition (New).

$ 328  Contact Us  

Yamaha CR-640

Audio Proz Inv #: 57692

Stereo Receiver, silver face wood case, 2 speaker switcher, high/low filters, nice tone control, multi selector input, record out select, 40WATTS per channel. 7+/10 condition, minor stains on knobs, FM center meter is non-functional, complete service clean, power supply ground mods etc, updated STK drive and IC. Unit has seen virtually no use time!

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Denon DN-T620

Audio Proz Inv #: 57966

Cassette/CD player. Rack mount. Top of the line unit. Auto reverse. Balanced line and RCA inputs and outputs. CD + Tape have pitch controls. Tested and calibrated OK. New. 10/10 condition.

$ 560  Contact Us  

CAD D82

Audio Proz Inv #: 58134

matched pair can be made avaliable for $160 each or $310 the pair. Ribbon microphone. Figure 8 pattern. Very highly recommended ribbon mic. New in box.

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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.


Yamaha YP-450

Audio Proz Inv #: 58181

Manual only with cue. Long arm Turntable. Wood Base. New Audio Technica 311EP cartridge installed. Dust cover is in 7/10 condition (has obvious scratches). Turntable in 9/10 condition overall. Improved grounding and dampened and decoupled arm to lessen microphonics.

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EV PL20

Audio Proz Inv #: 58214

Modified mic with CAD 411 whole assembly retro fit into PL20 chassis hypercardioid triple non foam windscreen uses internal ev transformer sounds like RE 20 but can take more sound pressure more clarity. Mic is heavier has less microphonics slightly heavier output. Call for modification. I've done this mod for some fancy studios who like it. Very cool modern mic. 8+ condition.

$ 280  Contact Us  

M-Audio LX4 Studiophile 5.1 Speaker System

Audio Proz Inv #: 58232

5 Small 2 way speakers. 6 inches wide, 9 inches tall, 6.5 inches deep. Black textured vinyl cabinet (no grills by design). 1 inch mylar dome. 4 inch cone/foam surround. Shielded, clear voice and mid bass. Designed as front left and right, and rear left, right and center channel expansion speakers. (Could be modified for improved fidelity). Powered subwoofer. 8 inch front face design. Black with black knit grill. Discreet 1/4 inch input only. Master volume for satellite speakers, separate bass level control. Basic clamp speaker outputs. Includes some speaker cable.

$ 368  Contact Us  

JBL 2600

Audio Proz Inv #: 58298

Audio Pro in house total upgrade of woofer and tweeter. Tonegen Woofer tunes to 40 Hz, Silver Flute tweeter. Rev 3 Phase corrected crossover, Light Oak nice round cabinets. grills have small pull holes. #8+

$ 360  Contact Us  

Crown Powerline Two

Audio Proz Inv #: 58562

PL-2. 2 Level adjuster. Output monitor jack. RCA input. Face plate is good condition but rack handels have obvious scratches. Complete service. Unit in low, 8 condition.

$ 300  Contact Us  

DBX 3BX Series I

Audio Proz Inv #: 58712

3 band dynamic range expander. 0-50% expansion. Gain exchange LED system. Transition level fader module. Easily understood recording functions. Beautiful stained wooden panels. 9/10 condition (all clean calibrated).

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We have thousands of items in inventory. To see our full inventory select the category under the Products dropdown menu, or at the top and bottom of each listing.


TEAC A-3440 Multitrack Series

Audio Proz Inv #: 59004

4 track simulsync 1/4 inch tape. Pitch control. Metal Reel, Pitch Control, Hub Adapters, All channels within 1db tracking. Complete clean calibrate (1 meter replaced) 8/10 Condition, heads are at 85%, no feet on back or bottom #8+ Condition

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Beyer M 69 N (c)

Audio Proz Inv #: 59267

New in box W/ Spec Papers. Product from 20 years ago. Comes with Beyer Mic Holder. SN #: 53464. Part of shop owners personal collection. tested OK #10 condition

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Phase Linear 1000

Audio Proz Inv #: 59325

Autocorrlator noise reduction system. Dynamic range recovery. Peak unlimiter/down Expander, Autocorrelator. Low freq, calibration controls. Many modifications,crucial capacetor update for better performance and channel to channel spec. ground MOD for super low noise.

$ 300  Contact Us  

Philips GA312

Audio Proz Inv #: 59352

Belt drive, auto pick up at end of play only 33/45 pitch control, dust cover has crack left hinge, new belt installed, new phono cart at 92 with 311 stylus installed, (dent on center silver platter disk) basic service and maintenance, arm balanced, #8-

$ 368  Contact Us  

Pioneer PL-514X

Audio Proz Inv #: 59433

Automatic Return, New AT311EP (eliptical stylus), Black Base, Superior Quality. Dust cover nice but light scratches. #8+ condition

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Art Pro VLA II

Audio Proz Inv #: 59467

REV2. NEW. 2 Channel vactrol compressor. With 2 channel modified with compression EQ. Condition: 10.

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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


Sony RF Wireless Headphone System MDR-RF985RK

Audio Proz Inv #: 59669

Includes headphones, ac adapter, transmitter, connecting cable, 3 channel. #10 New

$ 108  Contact Us  

Mitsubishi DA-A10

Audio Proz Inv #: 59763

Dual monaural construction. Stereo power amplifier. Back panel level control, 2 way speaker switch. New capacitors installed, including bypass capacitors. Good quality relays UPDATED. Nice condition, low use time. 9. We can do a capacitor rebuild on this model for $200-300.

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