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M79 AUDIO BOARDS
SERVICE, REPAIRS, UPGRADES
 

Special Offer!   $109.00

3M M79 Audio Card FET & Capacitor Upgrade (click here) 
This upgrade includes the following to YOUR 3M M79 Audio Cards:

  • Inspect your audio board and report ...

  • Special Offer!   $179.00

    3M M79 Audio Card - FULL UPGRADE (click here) 
    This is the FULL upgrade for YOUR 3M M79 audio cards.

    Included in this FULL upgrade:

  • Inspect your ...

  • Special Offer!   $99.00

    3M M79 Audio Card - FULL UPGRADE - 8 BOARDS & UP (click here) 
    This is the FULL upgrade for YOUR 3M M79 audio cards.

    You pay a DISCOUNTED RATE $99 each ...


    Special Offer!   $79.00

    3M M79 Audio Board Record & Play Amplifier Upgrade (click here) 
    This upgrade includes the following to YOUR 3M M79 Audio Cards:

  • Inspect your audio board and report ...

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    GRS PRO AUDIO
    Mailing Address Only ,  42397 Sabina Dr.,  Hemet,   California,  92544   USA
    Tel: (951) 767-0271