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Cable Asylum Interconnects, speaker wire, power cords. Ask the Cable Guys. |
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In Reply to: Honest quesion on damping factor posted by garth on July 16, 2002 at 09:17:33:
Does the resistance of the LS cable fall on the amp or speaker side? In other words do you add the few 10ths of an ohm to the high impedance of the speaker or to the very low (in the case of SS amps) impedance of the amp?It seems in the former it would make no difference whatsoever but in the latter it could drastically reduce the effective damping factor.
Well the amplifier's output impedance, the cable's DC resistance and the voice coil's DC resistance are all in series so I suppose you can take it from whatever point you want. This just points out what a pretty much useless spec damping factor is.
I shouldn't have used the term "damping factor." What I was trying to get across was the fact that the cable's DC resistance only changes the bass response of the loudspeaker by effecting the total Q of the loudspeaker system's fundamental resonance, Q ts ts represents the combined mechanical (Q es ) and electrical (Q es ) portions, and since the DC resistance of the loudspeaker's voice coil is the dominant portion of Q es , then adding some tiny amount of cable DC resistance does virtually nothing to change system Q.
Of course whether that (damping factor) is significant is another subject. I personally don't worry about it with SE amps and horn speakers.
Hehehe.
se
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- Re: Honest quesion on damping factor - Steve Eddy 07/16/0222:05:15 07/16/02 (0)
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