I think the worst result of passive high-pass filtering is the audibility of the HUGE cap one has to use. If one solves F = 159155/RC for 50 Hz and 8 Ohms, one gets 398µF. Do YOU know of a high-quality 400F cap? I don't. Then, ALL the music reproduced by that speaker will be be going thru that cap, so it MUST be very high in quality or you'll hear the negative effects of it. I removed the inexpensive 470µF high-pass filter from my Eminent Technology 8s because they sounded bad enough for even this tin-eared audiofool to hear.
Active filtering, ie before the amp, is MUCH easier to implement (with a small, great-sounding cap soldered into the amp) and better sounding.
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Active filtering, ie before the amp, is MUCH easier to implement (with a small, great-sounding cap soldered into the amp) and better sounding.
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