opaqueice;169678 Wrote: > Could it be that the difference you hear with your active crossovers > could be due more to lack of amplifier distortion rather than with > phase coherence? Driving a passive crossover is much, much harder for > an amplifier than driving a single speaker cone, because the impedance > varies a lot over the large spectral range the amp has to cover. My > understanding is that that is the primary reason why active crossovers > are superior (it also means you can use much cheaper amps). On the > other hand - and I may be wrong here - I don't see why the phase > response would be any better with active rather than passive analogue > crossovers. After all the only difference is whether the amplification > is before or after the filters, right? But the phase delay doesn't care > about amplitude.
Well, you may be right but the problem is that I can't compare eggs with eggs here since it is very difficult/expensive to implement accurate and well behaved 36db/octave slopes passively - and I believe that it is the amplifiers struggle to drive a varying impedance of the passive x-over/speaker combo that gives rise to phase distortion issues. Whatever the reason, I find it hard to contemplate going back to speakers with conventional crossovers - they all seem a bit "confused" (not a good word but the best I can do) to me. Have you ever tried an active setup? I'd be interested in your opinion. Phil -- Phil Leigh ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=31590 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
