Re: no mystery at all

Planar Speaker Asylum

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In Reply to: Re: no mystery at all posted by Marc Bratton on March 5, 2004 at 06:52:52:

I think the amp's output impedence is the biggest variable. On the MG1.6 it takes only 0.2 ohms to emphasize the midrange by 0.5dB relative to the bass and treble.
I now better understand the Maggie design - the crossover introduces a bass boost (the bass panel is more efficient than the tweeter). Together with the bass panel resonance, the bass boost helps overcome dipole cancellation. An amp with significant output impedence turns the electrical bass boost into more of a midrange boost. So depending on the output impedence, one can get either strong bass (as the speaker is designed), or a slightly-emphasized midrange (with a tube amp or series resistor), or anything inbetween.
I've been toying with the idea of electronic bass equalization to do more than what's possible to do in the crossover. No concrete plans yet.
Ed

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Follow Ups Full Thread

Topic - Da glare is FINALLY gone, gone GONE!!.... - Marc Bratton 21:07:15 03/4/04 (5)

Re: Da glare is FINALLY gone, gone GONE!!.... - sbrians 09:54:43 03/5/04 (1)

The dynamics of the T7.... - Marc Bratton 16:08:44 03/5/04 (0)

no mystery at all - EdG 06:10:02 03/5/04 (2)

Re: no mystery at all - Marc Bratton 06:52:52 03/5/04 (1)

Re: no mystery at all - EdG 03/5/0408:11:09 03/5/04 (0)

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Re: no mystery at all - EdG 03/5/0408:11:09 03/5/04 (0)

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