"High-Resolution Mixing in 5.1 — the Chuck Ainlay Way ~ Part Two" Scroll down to the paragraph labeled "Bass Management — Avoiding the Pitfalls" (the HFR site has a stern warning about copy/pasting parts of their articles-whatever. ). I've mentioned the issue of bass management for 5.1 music several times here after lurking on pro forums, reading about it in this white paper ("Recommendations for Surround Sound Production") and doing a few of my own little experiments. But to avoid b.m. problems in the first place and simply to reproduce the music in the best possible manner*, pretty much all surround engineers advise using full-range speakers all the way around, along with a sub in case the engineer happens to choose to use the LFE channel....which some surround recordings don't use. FYI: whenever someone says "full range" speakers, some people immediately start complaining about having five huge floorstanders with dual 12" woofers in 8 cubic foot cabinets sitting in their living room. Ummm, no. Because based on what I've read, those engineers mostly seem to want people to not use tiny satellites with five inch and smaller "woofers". I have to agree because 99% of the speakers I hear equipped this way seem to have a hard time realistically reproducing certain important instruments-bass guitars, pianos, certain drums-and male voices and it doesn't matter if a subwoofer is used. As I've also said before, to me a speaker finally sounds nearly "full" when a 6.5" woofer is used when used to play back my type of music and in my living room. Usually only bass drums and church organs get left out in the (sonic) cold but I can still sense their presense. And no, this size woofer can't reproduce the extreme low bass that shakes couch cushions, but I'm talking about MUSIC reproduction here, not a starship's hyperdrive engine or explosions in a WWII movie. Lastly, sonic artifacts generated from badly-configured b.m. systems-i.e from room and ELECTRICALLY-based phase cancellation effects, and incorrect crossover points-aren't as noticeable with movies because: 1) many of their audio effects are artificially generated so there is no way to know what those effects are supposed to truly sound like. >>> But with a piano, a drum or Mr. Springsteen's voice, there ARE solid reference points for music fans to base their judgements on. 2) a movie's soundtrack is mostly an intermittant situation so problems can occur without being noticed right away. >>> But a dvd-audio, sacd or DTS-CD plays music continuously, so any serious sonic aberrations during music playback are more easily identified. I realize all this may put a damper on some people's opinion of surround music, but I finally realized that like any other quality sensory experience-good food, fast cars, etc-this format needs extra care to get it to work properly. * due to this research, both of my rear channels are now speakers that use 8" woofers, just like the front mains-both pairs' response reaches to the low 40s; my center channel is now a large-ish bookshelf with a dual ported 6.5" woofer and IIRC reaches to 55Hz. I use no bass management; this goes for movies too. BTW: I don't listen at reference level so my receiver is never needlessly overtaxed. Folks, switching just the rears from Realistic Minimus models (2-way with 5" woofer in an aluminum cabinet) to the larger speakers made a huge difference, and I'm not one to throw around adjectives like that either. Surround music listening definitely became more enjoyable! >>> Also, check out page 2-5 in that white paper for correct speaker placement for surround MUSIC listening.