I've recently connected my Paradigm PDR 10 Subwoofer by Phono low level input to my Toshiba SD520E DVD player, in turn connected to Toshiba 32ZP18Q picture frame TV, by Coaxial. The question is, On the back of the Sub it's got a 'subwoofer level', dial switch and a 'frequency cut off' dial switch. 1.How best should I use both Switches? 2.Should both be turned to the same position? 3.What benefit is the Frequency cut off switch? Any Advice will be gratefully received. Rich Tee.