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  • Capstan Motor Modification with Puck (MTR-90) REBUILD ONLY

Capstan Motor Modification with Puck (MTR-90) REBUILD ONLY

SKU: ATH-90-CM
$1,300.00
$1,300.00
Unavailable
per item


MAXIMIZE PERFORMANCE with our Otari MTR-90 capstan motor modification by Athan Corp. Rebuild service for MTR-90-II & MTR-90-III.


Rebuild service includes:

  • Smoother tape travel across the heads.
  • High frequency tones lay down on tape without dB variation.
  • Reduce component flutter from .034 to .005 @15 ips.
  • Prevent improper headwear.
  • Improve transport stability.
  • Accurate location readings.


Athan Corporation's CAPSTAN MOTOR MODIFICATION converts the MTR-90 Audio Machine into a mastering machine by upgrading the assemblies.


Two factors occur when the component flutter is improved:

  • The overall flutter of the machine drops significantly
  • The transport stability is improved, due to the reduction in servo error at an average of 15%


Two factors occur when the run-out of the shaft (TIR) is improved:

  • Tape travel across the heads is smoother, which also prevents improper headwear
  • High frequency tones may lay down without dB variation, particularly in the upper channels


>>SHIPMENT OF YOURMOTOR TO ATHAN IS REQUIRED for this rebuild service<<​


Shipping: Costs for packaging & shipping the motor to Athan Corp are separate and the customers responsibility. For the return of your motor, the customer will be charged separately by Athan Corp for packaging & shipping costs after your rebuild is complete. Contact us for more details and shipping instructions.​


​ATHAN P/N: ATH-90-CM

OEM P/N: KC-6B-A / KC-6E-A


​*Also available, MTR-90 Idler Modification with puck. This service is listed under 'MTR-90' machine.

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