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Class D Switching Power Amplifiers and Power D/A conversion

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Old 13th August 2009, 12:52 AM   #11
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Join Date: Aug 2009
Thanks so much for the help folks.

On another post of mine in this forum (under the loudspeaker section, having to do with building the actually speakers), someone recommended a gainclone kit instead, the LM1875 from chipamp.com.

Now, I have a very basic understanding of class-d versus class-a (ie. variable power based on a sawtooth wave versus constant power), but I have no idea what a gainclone is.

Anyone care to give me their $0.02 on this suggestion? Thanks!
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Old 13th August 2009, 02:09 AM   #12
Nanook is offline Nanook  Canada
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Join Date: Feb 2004
Location: Chinook Country.Alberta
Default A gainclone is

an amp based on the 47Labs gaincard amplifier a high end chip amp, from Japan. Basically a minimalist (some have as few as 9 components in the signal path if I remember correctly) chip based amplifier. The chip is a National Semiconductor "LM" series chip. Have a look here for a better explanation.
stew -"A sane man in an insane world appears insane."
Let's help Dave and Ruth
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