In Reply to: RE: No. posted by Triode_Kingdom on July 26, 2014 at 10:53:02:
The mention of overload recovery above deserves some attention. In the context of guitar amps that are frequently driven into distortion, a too-large cathode bypass will result in very unpleasant sounds during the time it takes for the output stage (for example) to return to normal operating points following a momentary overload. It has to do with the time constant of the resistor and capacitor. If the cathode bypass is smaller, the recovery may be barely noticeable.
Of course, we don't want HiFi amps to be driven into distortion, but a very large cathode bypass can make the amp more fussy about transient overloads. Some bandwidth limiting at the lower end could also make an amp less susceptible to subsonic signals like record warps.
It's usually not that difficult to experiment with different cathode bypass values to determine which one sounds best. Use your ears :-)
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Follow Ups
- RE: No. - Thermionic27609 11:04:36 07/27/14 (0)