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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: Euphonic Compression posted by RandyB on November 11, 2002 at 18:24:44:
All speakers exhibit compression as a result of heating.The copper of the voice coil heats up as a result of power dissipation (don't forget, we're only talking 1-2% efficiency here for normal non horn drivers.) When it heats up, the resistance causes less current for the same voltage drive from the amp. The time constant is a thermal one, rather slow, not cycle to cycle.
If the different drivers are not matched in this respect, the frequency response will change with time at higher power levels.
The magnet structure will have some hysteresis, but that is to be avoided, it will cause all sorts of harmonics.
TTFN, John
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Follow Ups
- Driver compression - John Escallier 20:20:46 11/12/02 (3)
- Re: Driver compression - RandyB 21:12:56 11/12/02 (2)
- Re: Driver compression - John Escallier 21:25:51 11/12/02 (1)
- Re: Driver compression - RandyB 22:17:25 11/12/02 (0)
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