I was talkig to some guy at a local retailer about powered main speakers and having to split the LFE channel to actually get the bass to them. He was saying that everytime you split the LFE channel you loose 3db of sound. So with the def tech having powered mains, centers, and surrounds you end up loosing 12db of bass in a 5 speaker set up. So my question is, how true is this and does it make buying powered surrounds not worth it? And if my crossover point for the LFE channel is at 80hz and the crossover piont of the surround bass-to-mid is at like 200hz, is all the sound from 80-200hz still powered?