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Author Topic: What Class?  (Read 2155 times)

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Offline Love_Me

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What Class?
« on: January 11, 2007, 02:12:58 am »
What class amp is the all tube late sixties Sunn Solarus?
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Offline JoeArthur

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Re: What Class?
« Reply #1 on: January 11, 2007, 07:03:29 am »

If you're asking what operating class the push pull output tubes are biased to, that would be class AB. Not quite sure if it is AB1 or AB2.
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Offline Soundmasterg

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Re: What Class?
« Reply #2 on: January 12, 2007, 02:41:02 pm »
You could make it Class A if you lowered the plate voltages significantly, used a different output and power transformer, and rebiased into Class A.

As a side note....not sure what you've been reading, but most of the guitar and bass amps ever made are NOT Class A. The Vox AC30 being a famous example of what many say is Class A, is NOT Class A. Its all marketing BS. Single ended things like a Fender Champ are Class A for the most part, although some of these can be driven into Class AB. Read this article if you have the time.

http://www.aikenamps.com/VoxAC30classA_2.html
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