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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Active vs. Passive Crossovers? posted by John K on April 14, 2000 at 06:58:10:
Passive means you use just resistors, inductors and caps. Things that just sit there and do one thing (well, you wish they did just one thing).Active means you are employing some sort of control of the filter or gain, whether it be through changing the slope of the filter, Q, frequency point, etc., or adding gain to the signal, especially if the filter is lossy.
Active filters are used mostly in pre-amplifier situations because they add flexibility (they are somewhat 'tunable') and they do not lower the signal level appreciably. Most also offer the benefit of buffering as well, although you still have to pay bucks for a good buffer. A really nice buffer system with gain is also called a preamp.
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Follow Ups
- Re: Active vs. Passive Crossovers? - Shawn Harvey 10:34:03 04/14/00 (2)
- Re: Active vs. Passive Crossovers? - John K 17:31:56 04/14/00 (1)
- Re: Active vs. Passive Crossovers? - Shawn Harvey 17:47:26 04/14/00 (0)
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