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GK Blackline 210 needs a repair person

Discussion in 'Amps and Cabs [BG]' started by Navnetso_Cal, Jan 17, 2018.

  1. Navnetso_Cal


    Dec 30, 2017
    I have a GK Blackline 210 combo...It’s older... It will hum as you turn the volume up on any bass but the hum diminishes when the bass volume is at full.
    Can anyone recommend a repair person in the LA / San Fernando Valley?
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