Audio Proz Service and Sales


KLH Model 21

Audio Proz Inv #: 55841

Assorted tuner varicons, tuner boards, power boards, buttons, transformers, etc. Contact us for availability of specific parts.

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Fisher 450 parts and boards

Audio Proz Inv #: 45159

We have switches, meters, and controls for the Fisher 450; as well as the following boards: FRCE2038BX, FRCEB2201, FRCE2019A, FRCEB2099, FRCE1535, FRCEB2086, EB2081, FRCEB2082AX, and FRCEB2095AX. Please contact us for more information. Please supply a picture of the part desired if possible. Parts generally cost between $8 and $20.

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Scott 348 parts

Audio Proz Inv #: 45158

We have connectors, antennae, switches, meters, and other parts available for this Scott receiver. We also have boards, including 019-1107-066 preamp, PC-134 Automatic Multiplex Demodulator, PC-TB-1, PC-IF-2, PC-P-5, PC-IF-1, and PC-P-5. Please supply pictures of the parts needed if possible. Parts generally cost between $8 and $20 each.

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Sansui QR4500 parts

Audio Proz Inv #: 45157

We have connectors, controls, transformers, switches, and other parts available for the Sansui QR4500. We have boards F-1365, F-1360, F-1366, F-1383. All parts are readily available, in excellent condition, and generally cost between $8 and $30. If possible please provide us with a picture of the part you need.

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KLH Model 35 boards

Audio Proz Inv #: 45162

TAM-4 tuner board, TAM-4 preamp board, PAB-8 amplifier board. Contact us for prices and other parts. All boards in excellent condition, . At this time now most boards will require to be re-capped, either by us or the buyer. Vince the owner who worked at KLH,  offers some important service advice (consulting) that is required to get proper operation due to the age of these systems. Call for pricing and /or consulting info 617-926-8020

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


Scott 311-D parts

Audio Proz Inv #: 45163

We have many parts available for the Scott 311-D tuner, including meters, switches, controls, transformer #138952, TR-6-2, and tubes 6BS8, ECC82, EF94/6AU6, and 6U8A. If possible please provide us with a picture of the part desired. All parts in excellent condition. Meter, $25; various tubes, $8 to $12 each.

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Scott 310-D parts

Audio Proz Inv #: 45165

We have many excellent condition parts available for the Scott 311-D tuner, including meters, switches, controls, transformers, and tubes. If possible please provide us with a picture of the part desired. Meter, $25; Transformer, $12.

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Scott Tube Tuner parts

Audio Proz Inv #: 45164

We have many parts available, including switches, controls, knobs, various tubes, coils, and transformers. Transformer #138305E and TR6-2-1, tubes 63-13. Please try to provide a picture of the part desired with your request. Scott model number is unknown. Call for specific part numbers of coils, tubes, etc. These parts are in excellent condition.

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Onkyo TX-SR500

Audio Proz Inv #: 55328

For parts or repair. Unit will not power on, has shorted output transistors, #7 condition

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Pioneer VSX-D711

Audio Proz Inv #: 55361

A/V multichannel receiver. Custom Pioneer power pac's: (1) B2G12 (PAC010A), (1) B2G18 (PAC011A). Tuner module AXF7003-A (2808MY). Face & knobs OK, no top cover.

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KLH 20 parts

Audio Proz Inv #: 45881

We have many parts available for the KLH 20 receiver, all in excellent #9 condition. Wooden base: $22. Knob set: $16. Amplifier board: $14. Preamp board: $14. Many more parts available, call for details. (Presently low stock).

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We know you have many options for purchasing audio equipment and parts, and we truly appreciate your business.  We strive to offer good products at competitive prices.  While we can't always match the prices of one isolated reseller, we make up for it by carefully selecting, testing, and finding unique and special rare parts, and we are here for the long run.  We guarantee everything we sell and we hope it helps you to enjoy a great listening experience.

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.


Sansui tuner board

Audio Proz Inv #: 46352

Tuner board #F-1364 ELNA. Good #7 condition.

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HH Scott receiver circuit boards

Audio Proz Inv #: 46483

Various circuit boards are available here for HH Scott receivers, including 344B, 342, and 388. Boards available include 019-1107-065-Rev7, 019-3107-015, 019-1107-087. Call for details.

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Pioneer VSX-43TX

Audio Proz Inv #: 60933

Multi channel receiver. THX surround component video. Untested, possible to break for parts, speaker jacks, volume control etc., #7 condition

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Yamaha (and others)

Audio Proz Inv #: 61690

FM tuning module 8J76257A - priced at 24.00; FM IC LA3401 - priced at 8.00; LA1266 - priced at 8.00; 7925B - priced at 8.00; #9 condition

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Marantz 2238B FM tuner board

Audio Proz Inv #: 47677

Part number YD2204201. Very good condition, pulled from working machine. Color coded wires intact.

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Pioneer SX-1280

Audio Proz Inv #: 58848

Silver face plate with big oversized handles nicely mounted at edge of face sides. No knobs or switches included. Previous owner installed key lock power switch in left corner, nicely done, special key is with unit, 8+/10 condition, very minor scratches near volume and balance controls. Lexan dial face and glass cleaned thoroughly, JPG 135444 Condition #8+

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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 QX-949 parts

Audio Proz Inv #: 48228

Intact, good condition parts machine. This unit has noisy transistors, preamp and amp circuit, and other problems but is fully intact and in good condition for hobbyists. Wooden case in good #7 condition with some obvious wear at edges. Will break down for knobs, boards, switches, cosmetic parts, etc, or sell as a complete unit.

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Marantz 2220 B

Audio Proz Inv #: 53792

Unit has internal minor rust. Controls noisy. Bend in face/corner, chassis. FM problem. Worth: cover $16 (condition #7, minor bend, scuffs), power filter caps $12, knobs $3 each (condition #8+, need cleaning), amp board $48 (condition #8).

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Specialized Amplifier Transistors

Audio Proz Inv #: 59382

SAP 16 PY, SAP 16 NY, NPN and PNP versions. Salvage test good for sony V444 and others. #8 condition $4 each 

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Luxman R-117 parts unit

Audio Proz Inv #: 48538

Missing transformer, unit is good for parts. Good main filter caps, Bad sub power supply. We can supply better quality relay but must be hand wired into board. Back Panel speaker panel $20. Both left and right modules have been tested and are guaranteed good. Easy pull and install. Right Module amp $120, Left Module amp SOLD. Note: Relays in these units are notoriously bad and noisy. This may be mistaken for bad modules. Unit has seen low use time.

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PROTON AV-300

Audio Proz Inv #: 60329

Digital tuner and display. Phono, CD, Tape in. 100 watt and Audiophile AMP same as better NAD designs. MC phone input, good cleaning and ruggedize board/soldering. Low use time Taiwan Manufacture OK. #9 condition

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Denon AVR-3803 parts deck

Audio Proz Inv #: 49204

Intact machine to break down for parts or sell as complete parts deck. Please contact us for details.

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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.


Pioneer AKM-003 speaker connector

Audio Proz Inv #: 49643

Speaker connectors used on many models, SA900, SX626, SX727, etc. Excellent condition, new and used, several available.

SORRY, price change is due to rarity of this part and new stock. $20 each.

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Sherwood S-7100A parts

Audio Proz Inv #: 49850

Many parts available, including amplifier board, connectors, etc. Call for details.

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