Originally Posted by BradJudy
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.