I have two sets of speakers hooked up to my receiver - speakers A and B. The A set is near the receiver and the B set is upstairs at the end of a long wire. The problem is, to get the B speakers loud enough to hear well upstairs, the A speakers have to be blaring downstairs. Is there some kind of inline amplifier available that I could connect between the line and the B speakers to help boost the signal and equalize the volume on both sets? Thanks.
Dan