loud humming sound when I plug in the 12V in Make sure that the input connection ground is good. If that does not cure the loud hum then you have a power supply issue.
...powered sub started 'humming' The input filter capacitor of ur sub may be damaged,the possibility is upto 99%.u can identify the capacitor easily as it will be the the larger capacitor in that board ...
sub woofer unit - model number BX1121 - there is NO sound? could I be doing something wrong? The packaging did not come with a set up manual/guide but having done this before for the previous unit, it
...sub woofer connected to one power point and the computer connected to a different power point. To eliminate earth loop problems, connect both the speakers/sub woofer and computer to only one power ...
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