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In Reply to: RE: Interesting discussion of amplifier power and listening, Steve Deckert posted by drlowmu on August 31, 2014 at 19:46:26
I am having trouble buying a 1 watt amplifier being more powerful than a 50 watt amplifier.
As simple as this statement is, a power supply with good regulation & reserve energy plus a healthy driver and reasonably sized audio transformers should perform well.
Follow Ups:
I have to agree. A properly designed amp should have all these qualities.I get the points being made in the Decker paper, and the efficiency of the transfer function certainly must be taken into account. I would propose that even a higher powered push pull tube amp can provide those magical qualities at lower to moderate volumes if designed correctly.
A properly matched preamp stage can help the power amps provide that type of performance. A real game changer for improving the performance of my 1625 based amps was insertion of a DIY based Thomas Meyer 6AH4 preamp design. My goodness, what a improvement that brought! The noise floor is lower than just about any preamp I've ever heard or owned, including high end SS preamp types. This preamp transformed the power amps from very good to something special.
"What this country needs is a good 5 watt amplifier!" (Paul Klipsch)
Edits: 09/01/14
Here is a picture of the 6AH4 preamp insides.
"What this country needs is a good 5 watt amplifier!" (Paul Klipsch)
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