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Old February 21st 10, 06:12 AM posted to rec.radio.shortwave
[email protected] arthrnyork@webtv.net is offline
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First recorded activity by RadioBanter: Apr 2008
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Default Recommendations - 12 / 13.8v Power Supply, ~ 5 amp?

On Feb 20, 8:54*am, dave wrote:
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..- Hide quoted text -

- Show quoted text -


Must be running away all the way to China, I hope they don't. Why
Crown did not survive the test? Is the quality slipping,like most new
products today...