I believe subs are an optional luxury, if you have speakers that perform well down to 35 to 30 Hz. Usually when I hear a system with subs, it is a mess. I think few really know how to use subs properly.\n\nI don't use subs in my theater, but the bass is deep natural and perfectly integrated.\n\nI think as active speakers become the rule, you will see a trend to subs being designed for specific speakers, and properly integrated. A sub and speaker are a crossover, that has to be specifically integrated and designed the same as any other. Choosing any speaker and any sub, is not the road to accurate audio.