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In Reply to: RE: Efficiency & Resistance posted by tomservo on February 15, 2015 at 11:18:04
"In terms of headroom, usually an amplifier reaches Voltage clipping first or Current limiting first, the most headroom / largest peak power is had with a load where both are reached at essentially the same time."
I hadn't thought it through to that point, but that makes total sense.
Where sound quality is the overriding concern and headroom is not an issue, in your experience is there any advantage from a distortion perception standpoint to a solid state amplifier driving a fairly high impedance load rather than a headroom-optimized load?
My guess is "it depends...", but I'd be particularly interested in your experience and opinion.
Thanks!
Duke
Me being a dealer makes you leery?? It gets worse... I'm a manufacturer too.
Follow Ups:
A SS amplifier has distortion that declines as the impedance goes up.
Klipsch did an Otala Distortion test using a Heresy as a load, the distortion dropped like a rock in the midrange as the impedance climbed up to 70Ω.
Interesting! That has been my perception with my 16 ohm Spendor BC-1's. Solid state amps seem to sound their best on it.
Dave
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