To throw another configuration into the mix, I used to use a separate, passive crossover (high-pass filter) that filtered out frequencies below 80Hz. This filter had 1 set of stereo RCA inputs, and two sets of stereo RCA outputs (1 filtered and the other unfiltered).
I ran it between the preamp output and the amp input (for the filtered run), and a powered subwoofer with an 80Hz crossover/low-pass filter (on the unfiltered run). This effectively reduced the load on the amp driving the main speakers, as it no longer received input signal below 80Hz. It certainly made a difference to my ears in this system. Given that there were two amps (one in the subwoofer), I suppose it is bi-amping of a sort. :-p -- jeffmeh ------------------------------------------------------------------------ jeffmeh's Profile: http://forums.slimdevices.com/member.php?userid=3986 View this thread: http://forums.slimdevices.com/showthread.php?t=46354 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
