Even on recordings that hardly work my sub the "soundstage" will shrink if I turn it off. The hardest part (after finding where it works best in your room) is the crossover. Many subs have no hi-pass filter, and most that have them degrade the sound from your speakers. I run my main speakers full range and keep my sub at the lowest setting. I read in Absolute Sound that one of the reviewers uses passive in line filters made for car sterio in his tri-amped system. I think they are from Harrison Labs. Has anyone tried them? I think they are cheap, and as my speakers have a small mid-bass driver I would like to try some kind of filter that would not do more harm than good. Also, line or speaker level connection, which is better? I have read conflicting opinions on this. Is anything simple?
