Originally Posted by bommai
The big difference between LARGE and SMALL is that LARGE gets all frequencies for that channel, while SMALL gets only frequencies above the crossover (that is settable). When you set the speakers to SMALL, the sub will always get the frequencies below the crossover. That is why you cannot choose what the sub can do. SUB (LFE) is a bad wording, but when the sub is SUB (LFE) and the speakers are SMALL, the sub channel will contain all LFE and all low frequencies below crossover from all SMALL channels.
When you have LARGE speakers, the sub can be configured to carry just LFE or SUB LFE + L/R. The second option will give you the same low frequencies from the front LARGE speakers to the sub channel as well as the fronts. This will result in a little bigger bass - might actually screw up the sound, again might not.
The manual wording is pretty confusing - this kind of bad wording is all over the manual.
Awesome. Thanks A LOT for clearing that up. It's also good to know that someone other than me thinks the manual is confusing to say the least. So, basically, the long and short of this is that if I have a *good* subwoofer (which I do -- or, rather, will shortly), I should set my mains to "small" and set the crossover as low as the mains can effectively handle (to prevent localization of the sub), and just forget about the rest. Correct?
Again, seriously, thanks A LOT. I was actually considering dumping this Receiver as an option because of this issue. In my case, the bottom end of my Mains' stated range is 120Hz (with an 80Hz low frequency extension), so was inclined to set my crossover somewhere between 100Hz and 120Hz. If setting the mains to "small" was going to cause me to "lose" all non-LFE information below the crossover point, that was a dealbreaker for me since I have to set my crossover so high.
It is EXCELLENT news to me that such is not the case.