I have been looking at getting a sub for a while but have hit a problem and would like some advice. My SR5300 can x-over the signals between my fronts and a sub but in source direct mode (which I use for CD's) the default for the amp is sub on and main speakers large, unfortunately this means both speakers and sub will be trying to output bass frequencies and I already have problems in my room at 35Hz. As I see it I have a few options. -Do nothing dont use source direct (I will probably have to change bass settings every time I switch over) -Buy a sub with Low level x-over (I can x-over between SR5300 and Mono-Blocks) I did fancy a BK XLS200 but it does not have this functionality and I can not afford an ASW675. -Put a separate x-over between SR and MA's, I do not know how much these cost. -Use BFD? Probably will mean I can not afford to buy a sub at all. Any suggestions will be helpful, if you are going to suggest alternative sub's, my main interest is for music playback.