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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: Slew Rate posted by middleground on November 21, 2013 at 11:36:14:
Slew rate is the measure of an amp's capability to change output potential per unit time. Often stated as volts per microsecond.
Tube amps have limited bandwidth (due to output transformers) and high output impedance relative to their solid state brethren. Hence they aren't able to change potential nearly as fast as solid state, driving a comparable speaker impedance.
Insufficient slew rate is mainly an issue with amps of very high power ( > 200 wpc ), where the limit in change of potential per unit time compromises bandwidth at full power. The "power bandwidth" spec is related to output power and slew rate, and is a good spec in regard to real world power capability.
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- RE: Slew Rate - Todd Krieger 18:52:50 11/22/13 (0)
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