Amp damping factor?


OK need some technical info. I was told by a reputable source that I should buy an amp that had a high damping factor >100 and preferably closer to 150-200. In looking at this in the specs for many units it seems this might be over-rated. I have been looking at some vintage Mac gear and their numbers are like 10-40? Is that an age thing and modern equipment is just that much better? Or is there a tradeoff I dont know about?
joekapahulu

Showing 1 response by audiokinesis

High damping factors are often achieved through the use of large amounts of global negative feedback, which has negative sonic consequences that aren't obvious from the distortion specs (which themselves are virtually useless for evaluating sound quality because they correlate very poorly with subjective perception).

I have designed speakers to work well with amplifiers having a damping factor of about 1, and I'm certainly not the only manufacturer to do so. What sort of damping factor is appropriate for your speakers depends mainly on the impedance curve (primarily the shape of the curve itself, rather than the rated "nominal impedance"). Speakers with a smooth, fairly even impedance curve above the bass impedance peaks can work well with a much wider range of damping factors than speakers with roller-coaster impedance curves.

Duke

dealer/manufacturer