I run 7 901's in my HT...... Absolutely fantastic. You must use the equalizer that comes with the Bose. The tricky part is their hook ups. i have a marantz 9300 AV receiver that has PRE-OUT and MAIN-IN for ALL channels. My equalizer plugs inline between those jacks which works wonderfully. Except my center channel I use a graphic equalizer (set for voice freqs only) and carver mono amp. So bottom line, using 901's are a tad tricky.