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High speaker movement on amp shut-off

Discussion in 'Amps and Cabs [BG]' started by yamaha, Apr 17, 2006.

  1. yamaha


    Apr 7, 2006
    Lately, when I shut down my head (800RB), there is a rather big speaker movement and sound from my cabinets, but only from the 300 watt amp (low frequencies). The speakers seem to move about 1/2 inch in and out. Almost seems like a condenser discharging on shut off.

    Has anyone ever seen, or heard of this. Thanks for your imput.
  2. billfitzmaurice

    billfitzmaurice Commercial User

    Sep 15, 2004
    New Hampshire
    Owner, Bill Fitzmaurice Loudspeaker Design
    Precisely. It happens for the lack of a ten cent bleeder resistor on the power supply.

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