I've picked up a pair of Monitor Audio Bronze BX5's and I'm pretty impressed with them. I've gone for them as they are a match for my centre speaker, so sonically, the front is sounding very good. But I'm not sure what crossover point I should use for my sub. I have an Onkyo TX NR-686 receiver and the crossover goes from 200Hz down to 40Hz, or Full Band for, erm, full band speakers. Realistically I'd love to be running them on full band and get rid of the sub altogether, but the depth of bass just isn't there. And I can't afford anything else. So maybe someone can give me a bit of a heads up on setting the correct crossover point?