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dave · February 20th 10, 01:54 PM posted to rec.radio.shortwave

wrote:
On Feb 19, 8:18 am, wrote:
wrote:
On Feb 18, 8:36 am, wrote:
wrote:

The same audio designs usually implement class A in the power
output stages, so obviously they are not concerned about efficiency
and electric bills. They don't sound too bad, untill one looks at
their prices...

I do high-end pro audio. We have 1 RU amplifiers that produce 10,000
Watts each. They are decidedly not Class A I certainly wouldn't expect 1RU amps to be a true class A. Even at a 100 Watt into 8 Ohm load. What make is the one you are dealing with, Dave? Are they mosfets in the output stage or something different; the ones I was referring to are those overpriced consumer grade "audio-sucker" monoblocks, and usually weigh at least a 100 lbs and up. Talk about linear power supplies,good heavens... Heat sinks alone are almost as big as my house cast iron steam radiator!

They are Powersoft Digam from Italy. They are switch mode power amplifiers.

http://pro-audio.powersoft.it/an_ser...=53&id_menu=27...

Nice . Must be built to very high standards,since it is from
Florence. Are they better than Crown?

Crown did not survive our testing. BTW, JBL's moving out of Northridge.