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In Reply to: Very good post ... Heard the Hurricanes? posted by KIS on September 19, 2004 at 08:06:08:
Detail level is the first to go with excess feedback. Instruments become "smooth" and clinical and ambience details more diffused.
Bandwidth increases with feedback, if it's not limited by a component "brick wall" limit.
Bass level sometimes depends on the output impedance, which drops when you increase the feedback level. In some cases I prefered the zero feedback bass, due to its precise tone and "definition". That was the case with a Dyna MkIII amp which I modified to zero-feedback with triode front-end and 6550 finals in triode mode. In that case the front-end circuit (not the final stage) was measued at 80 KHz bandwidth and the full amp extended beyond 20 KHz - without feedback!
I applied my simple rule, if it ain't broke I ain't gonna fixit!
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Follow Ups
- Excellent observations! - serus 08:29:01 09/19/04 (0)