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In Reply to: Re: Any benefit to lower than maximum watt output for tubes? posted by drlowmu on February 27, 2007 at 22:26:26:
I understand that there is a school of thought that power tubes are better run at high voltage and low current. This places less stress on the tube than a higher current. I don't know where the golden ratio comes into the picture - maybe just a coincidence?
Follow Ups:
Hi Ray,ALL tubes, not just power tubes, run better at lower current AND lower voltages Ray. They sound better, far less strained and are more relaxed sounding. You car engine and lawn mower runs better at 5/8ths throttle, as do many things in nature, hence, the " coincidence " with the Golden Ratio.
and my amp starts sounding like a lawn mower, I'll know whom to blame! ;)
Hi Ray,William Lee and John Hagerman ( on his SE 2A3 amp ) and others use lower op points and prefer them sonically. On SE its dramatic, as the output trannie sees less standing current.
Hard to tell what you will hear, depends upon your circuit and supply implementation and overall execution. But even on stock P-P Paoli 60Ms. I preferred lower op points. Try it and let me know .
Regards !!
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