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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: Question for John Curl...Please! posted by Bold Eagle on September 19, 2004 at 15:17:42:
I don't know for sure, but it appears to be negative impedance to me as well. Some amps are designed with some negative impedance to improve 'damping' of poorly damped speakers. It is usually a very small resistor in series with the internal feedback resistor that normally goes to ground. Then as current flows through the loudspeaker it also flows through this small resistor to ground. This modulates the feedback resistor, and gives negative impedance. A little negative impedance is OK, most of the time. Too much will lead to oscillation.
Of course, it could be just 'poor' grounding that gives the same effect.
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Follow Ups
- Re: Question for John Curl...Please! - john curl 11:11:14 09/22/04 (4)
- Re: Question for John Curl...Please! - Bold Eagle 12:14:04 09/22/04 (3)
- Re: Question for John Curl...Please! - Nelson Pass 14:54:11 10/21/04 (1)
- Re: Question for John Curl...Please! - Bold Eagle 16:55:30 10/21/04 (0)
- Re: Question for John Curl...Please! - john curl 20:28:17 09/23/04 (0)
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