The B&W's won't like tubes.
Flip the phase switch and see if bass improves. You may be 'out of phase'. There is no 'standard setting'....only what works.
Turn the sub OFF until main speakers are adjusted correctly. Than add the sub back into the mix. In general, keep the sub out of corners.
Flip the phase switch and see if bass improves. You may be 'out of phase'. There is no 'standard setting'....only what works.
Turn the sub OFF until main speakers are adjusted correctly. Than add the sub back into the mix. In general, keep the sub out of corners.