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In Reply to: RE: Excess Line Voltage vs Amplifier Sound posted by 91derlust on January 09, 2017 at 19:36:25
Yes Sir,
Bad choice of words. I meant going from -55V to -60V but in essence that is lowering the voltage on the grid. But if you look at your response it is adding(raising) the negative voltage on the grid but it lessens the current draw of the tube and the total power supply.
I have modified many Dynaco ST-70 and Mark III amps and they sounded best running the tubes extremely conservative. I alos did very little to the power supply as far as adding Uf's to the caps and the such. It wounded better with almost the stock values. The biggest difference I found sonically was going from electrolytics to film caps in the power supply with oil caps as coupling. Many might not like the sound but I think it sounded softer and more natural.
Again, just my opionion!
Follow Ups:
Your choice of words was was technically correct - I was just clarifying for those that are less so.
Yes, although I run a different type of amp, I also run my tubes conservatively. For a desired power output, I'd prefer to have a higher dissipation tube run conservatively than a lower dissipation tube run near max dissipation.
I think we might have similar tastes in musical presentation.
Cheers,
91.
"Confusion of goals and perfection of means seems to characterise our age." Albert Einstein
Thank you for the kind words. Whenever I posted in the past I would get criticized in a big way so I just read and try to learn from the more informed.
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