Audio Proz Service and Sales


Panasonic RQ-339 mini cassette recorder

Audio Proz Inv #: 40624

excellent like new condition. one touch recording, auto stop, cue and review. buint in condenser mic. runs on 4 AA batteries or power supply. not included. mini jack mic and monitor connections. completly cleaned serviced and calibrated by audio pro.

$ 60  Contact Us  

Onkyo TV-W55

Audio Proz Inv #: 25971

Basic Dual tape deck, nice cosmetically, low use, high-speed dubbing, all serviced and cleaned

$ 120  Contact Us  

Onkyo TA-W200

Audio Proz Inv #: 59397

Stereo Double cassette tape deck RI. Normal/high speed dubbing, phones jack, Deck B counter, input level control. head wear 80%. Machine has excellent WOW/Flutter speed/ record calibration. Nice working condition, some cosmetic wear, display is pushed back a little around the tape counter but all function work properly, all mechanics calibrated and serviced, belts checked. #8+ condition

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Onkyo TA-RW311 Black

Audio Proz Inv #: 70143

Stereo double cassette deck, 1 side records, Both sides auto reverse  FIP meters and counter. Excellent performance  Easily serviceable machine. Very good wow and flutter, heads are excellent. These have the BEST mechanics. Minor stain on top. All service, cleaned & calibrated. 9-. ( Note: If unit bounced or jarred - Unit may have idiocyncracy to move forward -simply engage any function and unit resets auto cycling for forward and reverse).

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Onkyo TA-R410

Audio Proz Inv #: 64098

AUTO REVERSE, Nice Digital display with Nice BASIC DESIGN ACCUBIAS, HX PRO. METERS READ 3 db Low by design. TOP  QUALITY FIDELITY !!! Calibrated to Maxell Crome TAPE. ALL basic service #9

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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.


Onkyo TA-R22

Audio Proz Inv #: 62881

Quality auto reversing design stereo cassette deck. Single deck, computer controlled full auto reverse. Peak level indicator meter runs 3db low. Excellent record/play, fully serviced, great machine. #9+ condition (possibly SOLD - no hard copy)

$ 188  Contact Us  

Onkyo TA-2200

Audio Proz Inv #: 59075

Headphone, accubias. Variable bias HX Pro. Excellent calibration and speed spec, Maxell tape spec, remote is missing. 8+ condition.

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Onkyo TA-2200

Audio Proz Inv #: 50557

Single cassette deck with Dolby B/C and HX-Pro noise reduction. Adjustable bias, two motor electronic control, green fluorescent display. Like new condition with original manual, remote and cable. Excellent machine, carefully calibrated by AP.

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Onkyo TA-2022

Audio Proz Inv #: 47194

Excellent quality basic cassette player. Mic phone ins, Dolby B/C, metal chrome tape, LED metering, silver face. Excellent condition, fully serviced with calibration, new belts, and excellent condition heads. (box & Packing)

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Onkyo Model TA-RW505

Audio Proz Inv #: 53999

Nice design, dual stereo dubbing cassette deck, both transports record, play forward + reverse, dubbing, syncro record, Dolby B & C,  1/4" headphone jack.  Calibrated, cleaned heads, capstans, belts, excellent alignment, low use time, #9 face plate. 9/10 overall condition.

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Onkyo Integra TA- 2056

Audio Proz Inv #: 55838

Stereo tape deck. 3 head/ 3 motor computer control. Real time digital counter, Dolby B-C NR. 1/4" MIC INS (L/R) on face, MPX on/off. LED level meters, left/right preset level controls, master level fader, source/monitor source selector, accu-bias control. Has service manual. Excellent frequency response. Mechanism perfect like Nakamichi B 300. (Needs service and calibration). Minor scuffs on top face & cover, front plate minor ding. 8+ condition.

$ 200  Contact Us  


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.


Nakamichi MR2

Audio Proz Inv #: 15970

Exc cond., less than 10% wear, recent belts cleaning and calibration, pitch control

$ 320  Contact Us  

Nakamichi MR-1 Pro Cassette Deck.

Audio Proz Inv #: 28207

SN#08337 Front face in excellent condition. Front panel tape motion control, rec time, headphone output with level control, +4dbm 1/4" l+r mic inputs, digital counter, mem stop, front rear line in selector, output fader, l+r input faders, dolby NR, subsonic filter, monitor, EQ, tape type, LED metering, !!pitch control!! Rear panel: ext NR encode/decode str RCA I/O, str xlr +4dbm I/o, str1/4" -10dbm I/O, mpx filter, remote in. 3 space rackmount, 3 head design, completley cleaned serviced and calibrated. unit in mint condition!!

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Nakamichi DR8

Audio Proz Inv #: 41690

Dolby B/C (with special circuit, easily modded to record like HX Pro!), super quality deck, 1 head single direction mech. Record punch in. Front panel bias, auto repeat, auto timer record/play, metal tape. Virtually unused, #9 condition. Excellent!

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Nakamichi DR-3

Audio Proz Inv #: 60128

Type I II IV tape selector, Bias tune control, digital counter repeat/play/record selector, Dolby NR MPX Filter. Headphone jack. Calibration perfect for maxell tapes type II. Excellent working and cosmetic condition, very clean internally and exterior, very minor scratches, Obvious multiple scratches on case cover.  Virtually no use time. #9- condition

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Nakamichi CR-5A

Audio Proz Inv #: 70408

3 head design, Superior Cassette Recorder, Head is 80% good or better. Gear drive mechanism /super calibrated. Nakamichi Super Grounding (Recommended) New belts (1 year ago)  Battery replaced, replaced 5 volt regulator, replaced 2 PS caps, Cassette well bulbs wired to -12 V supply to reduce power to 12 volt line. Excellent cosmetics. #8+ condition

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Nakamichi CR-3A

Audio Proz Inv #: 64248

3 Head design black, excellent spec perfect calibration, for maxell tape in SX, Very low use, new belts, clean & calibration, 9 condition.

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We clean, service, repair and calibrate cassette and DAT cassette machines.
We have many parts available for all brands. Email Us or call (617)926-8020 for details.


Nakamichi CR-2A

Audio Proz Inv #: 26683

Black Faced Unit, 15% head wear, silent mechanism/microprocessor control, light up digital display with rec mute, bias tune control, output level controls, memory stop and repeat switches, excellent cosmetic and mechanical condition, cleaned and serviced.

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Nakamichi CR-1A

Audio Proz Inv #: 71365

Virtually unused. 2 head. Machine calibrates perfect. Cover a little worn. Complete service. Condition 9.

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Nakamichi CR-1A

Audio Proz Inv #: 63179

Single deck, Black faceplate, LED DB L/R meters, counter. Nice design gear drive mech. 9+ mechanical condition, 8+ overall condition due to minor wear on faceplate. (hard copy no longer in folder 11-9-21)

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Nakamichi CR-1A

Audio Proz Inv #: 70682

Very high quality cassette deck. 2 head, Dolby B/C, MPX filter (on/off switch), electronic controls. Gear drive version, idler. Memory stop/auto-repeat. Timer switch, play/off/rec. Black face w/ green status and meters. Low use, good condition. Heads mech virtually no use time. Perfect calibration. #9 condition.

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Nakamichi Cassette Deck 2

Audio Proz Inv #: 70418

SN: 12779. -/+ Bias Tune Control, L/R Record Balance Control & Record Level Master Control. Type I, II, and IV Tape selector. Dolby NR, MPX Filter. This unit has gear drive idler mechanism. Cleaned and calibrated to standard NAB Level. Calibrated type II for Maxell XL II. Low use unit in excellent condition. Clean faceplate with small scratch on power button. Top cover has minor scratching and signs of use. Fully functional, cleaned, calibrated, serviced. 9+ condition. 

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Nakamichi Cassette Deck 2

Audio Proz Inv #: 72890

Dolby B+C. Gear Drive mechanic, The best design. Excellent .015 spec wow and flutter. Uses synthetic rubber belt. Calibrate to type II Maxell UDXL. All basic service done. #9 condition

$ 328  Contact Us  


If you are calling or e-mailing about a motor, especially one that is rare or not specifically listed on our site, please include as many of the following details as possible: the direction the motor spins (clockwise or counterclockwise) when looking down the shaft, the voltage, and the diameter of the axle shaft (measured carefully). Also, a photo of your old motor is very helpful.


Nakamichi BX-300 3 head cassette recorder with Pitch control

Audio Proz Inv #: 72534

Excellent quality machine, All maintenance & service, by Audio Pro,  Perfect alignment of heads, excellent wow& flutter .05%, has recent new belt, Power supply heat sink upgrade,  Bias control is not accurate, so it has been set C.W.(off) and has been calibrated N.A.B. perfect for Maxell type II tape SX 70us, also ZX calibrated perfect for type IV metal tape. Level control at #9 calibrated to N.A.B standard levels. Virtually no use time, #9  condition (-151708.jpg)

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Nakamichi BX-300

Audio Proz Inv #: 61776

Discrete 3 head cassette deck. Direct drive/double capstan microprocessor control. Pitch control, Dolby B ,C, MPX filter, Headphone out with level control. Very low use unit. Best quality machine. Fully serviced, cleaned, calibration is excellent. 9+ condition.

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