The main speakers will make the system sound better if they operate down to 50 Hz. You definitely hear stereo sound down to those frequencies, and the subwoofer should never operate above 60 Hz; who wants monaural sound? No receiver is going to be overworked by driving speakers down to 50 Hz; only by playing the system way too loud.
It is ridiculous to have floorstanding speakers and operate them as if they were mini-monitors. Anyone who says to do that is seriously inexperienced in how to get the best sound from a system.
THX is irrelevant, because THX is a specification for setting up sound systems in large commercial theaters, not home systems; the requirements and equipment are very different.
The subwoofer is NOT to take the load off of the main front speakers; it is to reproduce the frequencies that the front speakers CANNOT reproduce, and that is all it should do.
Edited by commsysman - 6/30/12 at 7:14am
Originally Posted by LanceX
its a nice sub, the Energy s10.3
my front and sides are Pioneer SP-FS51-LR Floorstanding Speakers Pair , Pioneer SP-C21 Center , and there BS 21 loudspeaker in the rear.
The sub is amazing and I like the sound so setting speakers at 80hz lets the sub do more work right? and I dont want my receiver working too hard either
The sub is positioned in the Front of the room next to the TV with the left front. 4 feet from corner and 3 feet from back wall