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Class D Switching Power Amplifiers and Power D/A conversion

T-Amp as FIRST soldering project?!
T-Amp as FIRST soldering project?!
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Old 13th August 2009, 12:52 AM   #11
ledhed2222 is offline ledhed2222  United States
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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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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.
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