In Reply to: Re: an active (or passive)crossover is: posted by Andre Linoge on March 22, 2001 at 10:48:38:
I would be a bit cautious with that steep crossovers. They need at least one amp stage with every 12 dB steepness, and one or two additionnal buffers, which adds up to at least 5 amp stages. You are multiplying thus the amp colorations, and stage / power supply interactions - i'd keep off.
The long B-G driver is able to be run from 100 Hz up (as per Genesis, with 6! dB), with high power levels (AC).
If you use it from 500 Hz up, you give it about 25 dB of additionnal safety (protection) in low frequencies.12 dB is really enough, it gives you a certain blend of the systems, making the seam less obvious.
And try the solution of *only* using the bass output of your active *12 dB* Linkwitz crossover, together with a purely passive tweeter crossover. A rel. easy solution: Two caps and an active bass frequency crossover.Or: Ask Davey to adapt his design for your purposes. 'We' would need your amps, input impedance, and B-G driver impedance, and what preamp (source impedance) you use.
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Follow Ups
- Re: an active (or passive)crossover is: - Arbelos 03/22/0111:21:31 03/22/01 (10)
- Re: an active (or passive)crossover is: - Andre Linoge 11:56:23 03/22/01 (9)
- Re: an active (or passive)crossover is: - Davey 12:28:13 03/22/01 (8)
- Re: an active (or passive)crossover is: - Andre Linoge 15:08:30 03/22/01 (7)
- Re: an active (or passive)crossover is: - Arbelos 19:27:20 03/22/01 (6)
- Re: an active (or passive)crossover is: - Andre Linoge 22:28:20 03/22/01 (5)
- Re:-> audio-x-stream.com - Arbelos 11:53:12 03/23/01 (1)
- Re:-> audio-x-stream.com - Doug 15:26:59 03/23/01 (0)