I am a complete newbie, so take it easy on me: What should I set the subwoofer crossover at with the basic Kenwood HTB-505 system. I know nothing about the level at which your sub should kick in and fear that turning the crossover off (which is how it's now set) may damage the front speakers due to the increased load on those speakers. Is there a basic setting at which you want the sub tpo kick in? If you don't turn the crossover on, what happens? Help!!!!!