Can someone help me on this whole 'what frequency to set your crossover to' thing... I have a Denon DTH-500SD system with a passive subm, and in the setup, i can adjust the frequency from 40Hz to 150Hz, the default setting being at 150Hz, which is what i left mine at. However, reading through articles for set-ups, most people seem to favour setting their subs to 60-80hz. Would i benifit from dialling the frequency down to 80Hz (i can only adjust this at the amp, not at the sub), with my crossover set at 150Hz, does that mean that i've taken more of the bass off my speakers and letting the sub handle it? is it best to do this or let my speakers handle more of the low frequency effects? The speakers i have seem to be of a good quality and could probs handle it if its a better way of doing it.