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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Jump right in, posted by Dan Banquer on June 15, 2006 at 18:40:07:
Yet Earl Geddes himself doesn't really think his metric is applicable to electronics. He told me himself that he designed it as a metric for loudspeakers and that he himself doesn't believe much in the audibility of "well designed" amps. He said he was more than happy with his $150 Pioneer receiver and that he had not heard anything from amps that made him feel the need to change it. Sounds to me like he doesn't put much faith in his metric when applied to electronics, so why should we? It is likely better than previous attempts but perhaps it is not as effective as Cheever's TAD.I was reading through again, dwelling more on the methodology of his measurements and found that for amps with feedback the distortion used in his TAD must be done with the feedback loop disabled and he explains how he did this with the Hafler amp. So he is looking at the intrinsic open loop linearity of the circuit. He says you can't just break the feedback loop because many amps are not stable and the gain is generally way too high.
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Follow Ups
- Re: Jump right in, - morricab 03:09:28 06/16/06 (2)
- Re: Jump right in, - Dan Banquer 04:42:57 06/16/06 (1)
- Re: Jump right in, - morricab 07:47:13 06/16/06 (0)
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