Audio Proz Service and Sales


Otari MX 5050 B2 HD

Audio Proz Inv #: 53600

2 track rec play, 4 track play head. Low use but much finger wear from editing face #7 condition. #8 mechanical heads 90% good. SN 18302122. #8 condition. Cleaned. Calibrated. Edit, speed switch replaced, some lettering worn away at function buttons. Calibrated for Ampex 456, Maxell.

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Otari MX-5050 4 Track

Audio Proz Inv #: 15467

4 Track 1/4" reel to reel, Unit with meter cables in/out, needs minor repairs, heads in excellent condition.

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Otari MX5050 B

Audio Proz Inv #: 53299

Power Supply Board PB9A171B. Crucial parts replaced and updated. From well used but operational deck with color code connectors left intact. ( Board update and power supply caps - $88 value ) #8 Condition.

$ 196  Contact Us  

Otari MX70

Audio Proz Inv #: 58950

Remote cable 28 feet. 24 pins. 9/10 condition.

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Otari MX70

Audio Proz Inv #: 58952

Honda MR-50L. (2) 28 ft M to F connector for remote console.

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We leave "SOLD" items on our website for machines that we often repair and provide parts for. This is to give you an idea of the products we typically carry, and direct you to alternatives you may not know about - we often have substitutes for out-of-stock parts, and are happy to recommend workarounds and different solutions to common problems.


Otari ZA-64I cable

Audio Proz Inv #: 44587

Cable for CB-116 Auto Locater for the 5050B MkIII 8. 15', 34 pin to 16 pin female. Like new.

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Pioneer 4-Track 2-Channel Head Unit

Audio Proz Inv #: 43281

New item with original case and installation instructions. Includes complete head block (erase, record, play). For model PP-204T. 1/4" Track Stereo

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Pioneer RT-1011L

Audio Proz Inv #: 55390

3 motor, 3 head stereo tape deck. 1/4 track stereo format. Large/small reel selector, Hi/Lo speed. Left/Right record on/off switches. Bias, EQ STD/LH switches, tape/source monitor switch. 1/4 inch mic ins on face. 1/4 inch phones out. L/R mic, line level controls, L/R output control. Silverface unit with analog counter. Fully serviced and calibrated to Maxell UD 35/Ampex 456. Head 80% good. Speed runs 1/2% high by design. Modification to Rec Bass EQ to nicely improve deep bass response and tape / drive levels. Big VU meters, now has hub adapters (9/10 condition), has original manual and schematic. 9/10 condition.

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Pioneer RT-1020L

Audio Proz Inv #: 50834

Excellent condition, fully serviced. 10.5" Reel to reel 1/4 track with 4 channel playback, 7.5/3.75ips, switchable meters front/rear, mic inputs, line input, 3 position bias switching, 2 position EQ switch. Replaced counter belt, replaced capstan belt, replaced 6 transistors, cleaned lubed all switches, cleaned lubed both rec relays, calibrated for Maxell tape @ LH1 bias EQ LH, #9 excellent calibration, heads are 90% good, speed exact

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Pioneer RT-701

Audio Proz Inv #: 55700

Rack mount, Heads are 95% good, Calibrated to Ampex 456, Maxell UDXL (in LH position), unit was serviced, corrected head adjustments, adjusted brakes, #9 condition, slight staining on front

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Pioneer RT-701

Audio Proz Inv #: 58925

Rack mount. Heads are 80% good (shows a little staining). Pitch control. Calibrate service/cleaning. Faceplate 9/10 condition, nice excellent clean cosmetics, low use. No rack scratches. Calibrated to maxell tape. #8+ Condition.

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If you are having trouble finding parts, enter the name into our search bar at the top of the page. Please be aware there is a minimum $4-$6 to ship any part. International orders will be $14-$16 to ship for anything larger than an envelope. Shipping costs are non negotiable, so please, PLEASE do not ask for a part, or for us to search for, or quantify a part if you cannot pay for the shipping.


Pioneer RT-701

Audio Proz Inv #: 55704

Function Play, rewind etc. complete board, relays etc. RWS-051, CMK-60Y, RNP-342, color wires attached. Low use, condition: 9

$ 100  Contact Us  

Pioneer RT-707

Audio Proz Inv #: 41995

Auto reverse, new pinch roller, Super Spec Machine, perfect head, calibrated to Maxell tape, Excellent Face.  Excellent #9 condition, professionally cleaned, full serviced and tested by AP.

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Pioneer RT-707

Audio Proz Inv #: 60972

Best quality. Auto reverse, forward play. Machine has #9 condition. Heads are 80% good with perfect wear path. Unit calibrated to N.A.B. standards. Record play levels match +/- 1db speed calibration. New counter belt , Recent new pinch roller. Light white speckles on top case.  #8+ condition.

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Pioneer RT-707

Audio Proz Inv #: 71968

Auto reversing 7 inch reel to reel, heads are 95% good, cleaned controls, no rack scratches, needs belt. Condition #9

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Pioneer RT-707 Auto Reverse

Audio Proz Inv #: 71761

Heads 80% good and good wear path, new belt, new bulbs, all cleaned and calibrated to NAB standard, Set Bias and EQ for Maxel tapes, Unit has minor corrosion spot on left Side of case, no rack rash face 90%, #8 Condition CALL FOR COMPETITIVE PRICING

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Pioneer RT-909

Audio Proz Inv #: 55380

10" reel, auto-reverse. Heads 80% good. Recently installed auto-stop switches. Cleaned all controls, mechanics, etc. Bias/EQ set for Maxell tape. 185nW standard, 0dB at center detent on output. Some minor upgrades including shielding of FL meters.

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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.


Pioneer RT-909

Audio Proz Inv #: 61091

4 track 2 channel stereo, auto reverse, pitch control, monitor, rec mode, mic input, we may sell as-is or disassemble for parts, needs pinch rollers, machine has much wear, tape heads are worn but 80% good, motor good, needs new drive belt, #7 (unit dismantled- see our other listings for working reel to reel recorders)

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Pioneer RT-909

Audio Proz Inv #: 71241

Super quality Reel to Reel deck, 7" or 10" reels, pitch control blue FIP meters, Excellent record/ play quality !  New belt, New pinch rollers, Heads 80% good, with excellent wear paths. Audioproz cleaned and calibrated, bias set, board resoldering ruggedized at connectors. Output level#5 is 0 db reference, set Bias for  Eq1 & Eq 2, Very good / excellent condition recorder, Faceplate #9- (maybe a littel scuff) 1 broken foot at back. Overall condition #8+

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Pioneer RT1050

Audio Proz Inv #: 53352

Large reel, 7 1/2 and 15 IPS. High speed semi pro version 1/4 Track. Stereo format. With pioneer hub adapters in pioneer road travel case. Bias 2 for high speed, bias 1 for 7 IPS. All clean. Calibrated. Modified for better HF EQ. NICE. 9+ condition. Speed runs 1% fast by design.

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Quantegy

Audio Proz Inv #: 72554

 407, 1/2 Inch Test Tape, Audio Pro Made Tapes *1 KHZ at ODB speed Calibration, Tascam will read -10 db, output, (0-600 Counter), Otari will read -5db on meters, Condition #9

$ 80  Contact Us  

Realistic TEAC TR3000

Audio Proz Inv #: 53535

7" size, 1/4" tape format. 1/4 track stereo. Very high-quality TEAC machine. Machine has been special speed modified to do 1 7/8, 3 3/4 for archival retrieval. Optimum playback fidelity, exact-speed low-wow flutter. Unit has flutter rollers on both tension arms. Condition #9, cosmetic #8. Call us for pricing.

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Revox A77 1/4 Track Stereo

Audio Proz Inv #: 27651

Stereo 1/4 Track Format, 3 3/4 and 7 1/2 speeds, Face and knobs - cosmetically very good. Wood cabinet has crack on top surface. Cleaned all switches and controls also counter belt. Adjusted break bands, cleaned heads (25% worn), guides rollers, calibrated unit for modern maxell XLI, Excellent mechanical condition.

$ 380  Contact Us  


Re: International Shipping: We ship internationally often and have yet to encounter a problem or complaint. We are very careful to test the equipment before it’s packed and then to double box the machine with added protection when needed for front panels, etc. We are not amateurs or an ebay store; we know these machines very well and know what it takes to get them to you safely. We use USPS priority internationally which seems to be the cheapest. If you prefer another carrier (you should know who delivers to your area reliably) please let us know. Also please be aware of any tariffs that you may be responsible for upon pick up on your end. International shipping may be expensive but we will make sure it is not a headache on top of the cost. PLEASE NOTE THAT SHIPPING INTERNATIONALLY WILL BE A MINIMUM OF $16 EVEN FOR SMALL PARTS.


Revox A77 MK III

Audio Proz Inv #: 71735

Gray face meters, Gray plastic front panel, Multi AC Voltage version, 6 settings, With smoked front dust cover #7 condition, Heads #8 condition, speed board caps replaced, All electrolytic caps (about 20) in audio and power supply replaced, most tantalum on preamp boards left in as they test OK many replaced as needed, high quality version, unit has typical low frequency enhanced bass EQ response of Revox, All calibrated for Maxell UD tape, excellent performance/spec, (unit auto shutoff sensor is weak operation), #8+ condition

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Revox A77 Remote Control

Audio Proz Inv #: 27181

in excellent condition, cleaned 10 pin connector, 17 foot remote cable.

$ 150  Contact Us