Hi all,Are home audio amplifiers typically powered nowadays with switchingpower supplies, or do they still have a massive 60hz power transformerinside?I went to Best Buy yesterday, and was surprised at how heavy many ofthe home audio amplifiers were...

Most that I have seen are transformer powered. Not that it couldn't be done with switchers but if the transformer solution is only one cent cheaper that's how it'll be done.Regards, Joerg

switching power supplies in amplifiers?

Apr 26, 2006 43 Replies

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Phil Allison 20 years ago

"Clifford Heath"

** Yeah, right.

And the bass speaker box you have to lug about to use with it weighs what ??

40 Kg ?

At least.

F*ck off - imbecile.

....... Phil

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Pooh Bear 20 years ago

QSC's Powerlight and PLX ranges feature lightweight smps supplies and have been around for quite some time. They also feature multi-rail operation ( 2 and 3 supply rail voltages ) for reduced dissipation.

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Graham

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Fred Bartoli 20 years ago

Another idea is to use the Quad current damping idea with a switching power amplifier. The output filter inductance of the current damping is just what's needed for the output PWM stage.

Thanks, Fred.

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Pooh Bear 20 years ago

Really ? Do tell !

Graham

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