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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: Not-so-obvious difference. posted by Al Sekela on July 20, 2009 at 15:17:11:
Al, do I know you? Man you write the way I think. Anyway, keep it up!
I have long characterized the "field coil sound" as one of great dynamic range that does justice to the recording, accompanied by a relaxed presentation that places the listener at ease. After years of the teeth-chattering high end (hind end?) sound that Joe Roberts has described as "painfully accurate", I took to field coil drivers right away when I heard them. Like great old Alnico V drivers, but with even further refinements in the same direction. It seemed strange that 1930s theatre gear blew away 1980s high end salon stuff in the ways that mattered to me, but that's the way it sounded.
My theory, as yet untested, is that a well designed field coil motor permits less modulation of the gap flux by the voice coil currents than occurs with a permanent magnet motor. If this is true then the relaxed presentation of the field coil driver would simply represent greater accuracy in reproducing the input signal. Seems to me that to the degree the voice coil currents make the gap flux bounce around there might be all sorts of time-dependent interactions, like a pendulum swinging while attached to another swinging pendulum.
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Follow Ups
- RE: Not-so-obvious difference. - Steve Schell 00:23:07 07/21/09 (0)
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