Video Asylum

Posted by Kursun (A) on June 23, 2003 at 10:21:19

In Reply to: Re: AV Receivers - Question about power and crossovers posted by Some Guy on June 23, 2003 at 07:55:40:

The truth is,
Crossovers at subwoofer frequencies are not practical. They require huge coils and large electrolytic capacitors. Electrolytic capacitors on the path of the speakers, by the way, is degrading.

So,
Any subwoofer boasting a hi-pass filtered outlet to the main speakers is highly deceptive. It actually has nothing more than a pair of electrolytic capacitors inside. A capacitor alone produces a first order 6 db/octave filter which is almost useless. And it will degrade the signal quality of the main speakers.

Don't buy a subwoofer because it has filtered main speaker outlets.
If the sub you buy has such a feature, don't use it. Leave the crossing-over business to the much more competent active circuits inside the AV receiver.