Audio Proz Service and Sales


Otari MX-5050 BIIHD function buttons

Audio Proz Inv #: 49991

for play, ff, rewind, etc. Excellent condition. Note: play button SOLD can be substituted as a stop button SOLD, but is less wide. 1 red button available at this time. could be used as play button or other if colored black.  $12 each #9 condition

$ 12  Contact Us  

Otari MX-5050 BII-2 knobs

Audio Proz Inv #: 49310

(4) input line "ring" knobs with slip washer, $12/ea. Note:  No Top Knob  #9 condition

$ 12/ea  Contact Us  

Otari MX-5050 BII side panels

Audio Proz Inv #: 50847

1 pair of side panels with no handle cups; vinyl clad charcoal finish with cut outs for cupped holders. Comes with side screws and caps (8). Dimensions: 20 4/16" L x 8 2/16" W (3 5/16" to center holes). Some small chips and dings are on one panel. Condition: 8. SALE PRICE IS FOR PAIR

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Otari MX-5050 BII reel tables

Audio Proz Inv #: 50843

2 available (price listed is per each). Reel tables with bullet spindle. Condition: 9

$ 88  Contact Us  

Otari MX-5050 Bii pitch control PB9A561

Audio Proz Inv #: 50014

with board, lead wires, and knob.

$ 18  Contact Us  


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 MX-5050 Bii pinch roller arm

Audio Proz Inv #: 51240

includes pinch roller arm, springs, and pull rod. Excellent condition.

$ 18  Contact Us  

Otari MX-5050 BII head cover

Audio Proz Inv #: 49308

with Otari logo and 1/4" splicing block and head mount screw. Heavily used in good #7 condition.

$ 58  Contact Us  

Otari MX-5050 Bii HD parts

Audio Proz Inv #: 50140

Top/Back panel external light scuffs, minor rust/surface pitting internally. 8+ condition. $28 for the pair. (Vinc to find more)

$ 28  Contact Us  

Otari MX-5050 Bii HD cosmetic head covers

Audio Proz Inv #: 50138

Pair of matching cosmetic metal pieces designed to cover head assembly. Good #8 condition, nice but with some obvious wear. One 9.5" long, the other 6.25" long. Price is for the pair.

$ 20  Contact Us  

Otari MX-5050 Bii HD button

Audio Proz Inv #: 49992

1 Black button, for speed, edit, etc. Excellent 9/10 condition.

$ 10  Contact Us  

Otari MX-5050 Bii flutter roller

Audio Proz Inv #: 50006

Supply side flutter roller assembly complete with tachometer wheel and mounting hardware (tacho optical not included). Excellent condition.

$ 58  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.


Otari MX-5050 Bii button frame

Audio Proz Inv #: 50010

for edit speed, etc. Excellent condition.

$ 14  Contact Us  

Otari MX-5050 Bii button frame

Audio Proz Inv #: 50013

for play, stop, etc., function buttons. Excellent condition.

$ 16  Contact Us  

Otari MX-5050 BII bottom vent panel

Audio Proz Inv #: 50846

15 11/16" L x 3/4" D x 1" H; Condition: 9

$ 18  Contact Us  

Otari MX-5050 BII bottom panel

Audio Proz Inv #: 50845

Black embossed rolled steel with 4 corner screws. Dimensions: 15 10/16" L x 7 3/16" D x 3/4" H; Condition: 9

$ 18  Contact Us  

Otari MX-5050 Bii board PB9A172

Audio Proz Inv #: 50008

includes output SRL board, LED board, switch, and mounting hardware. Excellent condition.

$ 8  Contact Us  

Otari MX-5050 BII (B2) top rear panel

Audio Proz Inv #: 50844

15 10/16" W x 6 14/16" D x 14 10/16" H. Minor back scuff but otherwise in excellent #9 condition. (1 ) available.

$ 28  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 B2HD pinch roller

Audio Proz Inv #: 49994

with cap and screw. Very good condition.

SOLD  Contact Us  

Contact us about similar items or replacement parts.

Otari MX-5050 B2HD head block connector

Audio Proz Inv #: 55957

Green, 14 pin. Has intact wiring harness. Condition: 9

$ 16  Contact Us  

Otari MX-5050 B2 Metal Face Plate

Audio Proz Inv #: 50878

For surrounding area around head block ass'y with screws #9+

$ 30  Contact Us  

Otari MX-5050 B2 Head

Audio Proz Inv #: 55958

Reel motor with brake and hub assembly. MR1C012. On original mount.  Has PB9A179A PCB with 6.5 MF Cap. Salvage from working unit. 2 available. $48 each.

$ 48  Contact Us  

Otari MX-5050 B2 HD

Audio Proz Inv #: 50002

2 White button, 1 Black, for Rec, Sel, Rep, Monitor salvage #8

$ 8  Contact Us  

Otari MX-5050 B2 Face plate

Audio Proz Inv #: 50875

with logo and model "MX 5050" and labeling for: Power, Speed, Reel, Edit, Record, Play, Stop, Rew, FFW   with hardware - 1 available  Speckle Black  #8+ Condition

SOLD  Contact Us  

Contact us about similar items or replacement parts.


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 B2

Audio Proz Inv #: 50877

Pitch control metal knob with allen screw fastener #9 condition

$ 8  Contact Us  

Otari MX-5050 B2

Audio Proz Inv #: 50880

Pair plastic face plate rings for reel table area 4 5/8" diameter with screws #9 salvage

$ 12  Contact Us