Audio Proz Service and Sales


Teac DX-8 noise reduction board

Audio Proz Inv #: 44751

Part #60502881. Excellent #9 condition, tested and working.

$ 68  Contact Us  

Teac DX-8 power supply board

Audio Proz Inv #: 44746

Tested, in excellent #9 condition.

$ 68  Contact Us  

Teac 4T 2CH Play Head

Audio Proz Inv #: 55650

1/4" tape, 50667320, High density ferrite head, salvaged from low use machine

$ 68  Contact Us  

Teac 4T 2CH ER-R

Audio Proz Inv #: 55648

50667420, high density ferrite head, 48.4.9, salvaged from low use machine

$ 68  Contact Us  

Teac 4070G

Audio Proz Inv #: 55646

4T 2CH Play Head, 50667320, High density ferrite head, 48.4.13, Guaranteed no head wear, salvaged from low use unit, 9+

$ 68  Contact Us  


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.


Tascam 38 8tr 8ch erase head

Audio Proz Inv #: 46967

Part #53783002. Very good #8+ condition.

$ 68  Contact Us  

Revox A77 two track record head

Audio Proz Inv #: 46707

#022 Revox two track record head for 1/4" tape, non-cutaway head version. Very good #8 condition condition, relapped head.

$ 68  Contact Us  

Teac card extender connectors

Audio Proz Inv #: 48023

Teac part #52101125-00 WEC-4, Extension A PCB. Used for troubleshooting applications. Pair in like new condition.

$ 68  Contact Us  

Otari 5050 BII Motor Speed Board

Audio Proz Inv #: 56211

Motor speed board YG-6731 94V-1. Used board. Intact, clean. Came from working machine. Capacitors in circuit check OK. Comes with partial motor with hall effect sensor board.

$ 68  Contact Us  

Teac 4300 Side boards

Audio Proz Inv #: 50723

Left and right boards, may fit other models. Wood walnut (18.5" x 7.5" x .5") Hole HT 3.75", minor scuff on side, small chip on corner of side panel. 8 screws with 4 inserts (missing 4 inserts) #8+ condition

$ 68  Contact Us  

Revox A77, B77 NAB Reel Hubs

Audio Proz Inv #: 59314

Used pair obviously worn and stained, but mechanically intact with new O ring kit. $68 for the pair. 7/10 condition.

$ 68  Contact Us  


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.


Otari MX 5050 BII HD

Audio Proz Inv #: 51225

 logic board PB9A562A #PB-46R with 1-0012 IC. #9 condition, Salvage from working machine.

$ 68  Contact Us  

Revox A77 047 play head

Audio Proz Inv #: 51629

Lapped and tested, 1/4 track stereo.

$ 68  Contact Us  

Revox A-77 /B-77

Audio Proz Inv #: 51632

027 Model, 2 track head play, head was 70% good but now is relapped #9

$ 68  Contact Us  

Pioneer RT-707 control function board RNP-370

Audio Proz Inv #: 52499

RNP-370 KRK-1394V-0, complete with two relays, wiring harness and switches (ffwd, rewind, stop, play, pause). Used in excellent condition.

$ 68  Contact Us  

Tascam 34 flutter roller

Audio Proz Inv #: 54715

Flutter roller and cap. 9 condition.

$ 68  Contact Us  

Pioneer RT-701

Audio Proz Inv #: 59736

Face Plate. 2-3 scuffs near control buttons, minor rack rash rest of front looks fine. #8+ condition

$ 68  Contact Us  


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.


Pioneer RT 701 power supply and logic board

Audio Proz Inv #: 61820

#RNP-444 (RWG 089), with capacitors and heat sink

$ 68  Contact Us  

Tascam 34

Audio Proz Inv #: 63500

Power supply board 5210074300, tested OK #8+

$ 68  Contact Us  

Pioneer RT-909 Front Take Up (Right)

Audio Proz Inv #: 70582

Tape tensioner assembly complete with switch. #9 Condition.  

$ 68  Contact Us  

Pioneer RT-909 Supply Side (Left)

Audio Proz Inv #: 70583

Complete with switch. Works perfect. #9 Condition. 

$ 68  Contact Us  

Tascam 388 Bal Amp PCB

Audio Proz Inv #: 70620

Part #: 52101735-02. Tested Good, #9 Condition. 

$ 68  Contact Us  

Tascam 388 Input PCB

Audio Proz Inv #: 71271

52101732-00, 2 available, all controls cleaned, condition 9. 

$ 68  Contact Us  


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.


Tascam 388 Reel Table Felt

Audio Proz Inv #: 71274

1 available, condition 8+

$ 68  Contact Us  

Teac A-2300 reel table

Audio Proz Inv #: 71313

2-3/4 inch diameter, good lock spindle. #9 condition.

$ 68  Contact Us