Originally Posted By: chesseroo
Originally Posted By: JohnK
BW, the purpose of that screw is to connect the chassis of the sub amplifier to the shield of the sub cable. Ordinarily this might allow for a slight further reduction in overall noise level. However, if a ground loop is present, the resulting hum fed into the sub cable overwhelms any other factor. Removing the screw still leaves the sub amp grounded through the three prong wall plug, but cuts the loop which could exist through the sub cable.

That one was really well answered John.


I was going to say that but John beat me to it (I was busy trying to tie my shoes). I should really get my priorities straight.

The only reasonable argument for owning a gun is to protect yourself from the police.