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  1. K

    SUBWOOFER COOLING FAN VARIABLE OPERATION

    Hi everyone my new subwoofer with cooling fan dependent on temperature which does not run upon power up. Several hours of continuous operation listening music at home with lower volume wherein the fan is still not running but I can sense 45degC on its metal casing. I wish to revised the fan...
  2. K

    MOSFET FAILURE

    Hi everyone I have a new subwoofer but suddenly it turned off while playing. It's a 1600w and the volume is around 30% while playing. It was a second day of sound test that blown it's fuse when I looked into the power supply board. I found out mosfet 4pcs 40N60M2 shorted. As I analyze on the...
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