top of page

Service Center

We provide authorized repairs for Crumar, Keyboard Partner, and Viscount.

We also provide service on keyboards, guitar amps, speakers, and more.

Crumar Company Logo


Authorized service for all Crumar products.

Keyboard Partner Company Logo

Keyboard Partner

Sales and service for the HX3 line and accessories

Viscount Company Logo


Authorized service for Viscount keyboards.

HX3.4 Module
Keyboard Partner's


Stock Sound Desk
A Bit About The Company

MAS was started in 2014, after a brief retirement. Filling a niche in the Salem, Oregon area for personalized repairs, MAS started supporting the local musicians, schools, nightclubs, and theaters. Mission Statement: My goal is to help musicians and entertainers keep on making music, especially in these times. I treat every service like it is my own.


In 2016, filling in for a friend during a local theater production, MAS started assisting theaters with audio needs, and especially wireless needs.


In 2021, MAS became the sole US service center for the German based Keyboard Partners HX3 line, and an authorized repair center for both the Italian based Crumar and Viscount companies. In 2022 MAS became the US distributor of the Keyboard Partners HX3 line and accessories.

Get your HX3 Repaired Today.

Thanks for submitting!


  • HX3 Service

  • Crumar Service

  • Viscount Service

  • Audio Consulting

  • Wireless Consulting

  • Keyboard Servicing

  • Guitar Amp Servicing

  • PCB Repair

  • PCB Replacment

  • Audio Maintence

  • Analog and Digital Desk

  • Fretted Instrument Service


HX3.6 Module
bottom of page