rb2013
Author of The 6922 Tube Review
- Joined
- Apr 12, 2013
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that is not true. the wa7 is pure class A and can run low impedance headphones. my issue with your post is that you are implying that the lyr 2s class ab is somehow special or a more pure class a than class ab when a lot of class ab amps run purely class a when it is possible. that is how class ab works.
Again I disagree with your statement. The Woo WA7 is tube output based (6C45) - you're comparing apples and oranges. Almost every tube output amp is biased class A (push-pull - some SE). That is not the case with solid state outputs. You're confusing some headphone amp designs.
The Woo Audio WA7 “Fireflies” Amp/DAC is a combination of high performance vacuum tube headphone amplifier with a built-in USB Digital-to-Analog Converter. It is a pure tube design, utilizing 6C45 tubes in a class-A, single-ended topology, with transformer coupled outputs.
That is not how class A/B works and the Lyr is different.
http://en.wikipedia.org/wiki/Amplifier
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