Quote Originally Posted by BradJudy
Yep - this is how most receivers work, although not all of them have the LFE+main terminology. Many just have large vs small and a crossover setting. In general, small is the way to go, but when it comes down to it, use whatever you think sounds best (of course, there is a risk of blowing out a driver if you run bookshelf speakers full range to high volumes).

I think the Denon is the exception, not the rule.

Normally in a receiver, bass from speakers set to Small gets sent to the sub/lfe. With all speakers set to Small, the only option for the sub is on/lfe. If any speakers are set to Large, then on the sub the options are LFE (lfe and re-routed bass from speakers set to small) or LFE+Mains or Both (LFE, plus bass from speakers set to Small AND Large).

At least that's how it works on my HK. There is no LFE+Mains option available unless some of the speakers are set to Large. That doubles up the bass.