In Reply to: Dynaco mod posted by Tube747 on May 8, 2017 at 10:48:18:
Then as now, designers sometimes employed large amounts of NFB in order to produce competitive specifications. The question is whether performance such as distortion and frequency response deteriorate so significantly when NFB is reduced as to cause audible degradation. Considering that the ST-70 includes NFB through the UL screen taps, 12dB in a global loop should be more than sufficient for good technical performance. Whether the NFB reduction is sonically beneficial is another story.
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Follow Ups
- RE: Dynaco mod - Triode_Kingdom 12:22:13 05/08/17 (0)