tyler_durden;172678 Wrote: > If you are looking for a minimal power drain amplifier, get a "Class-D" > amplifier. They are essentially switch-mode power supplies with the > input signal as a reference and the output connected to a speaker. > Efficiencies run as high as 90%. These are relatively new and not many > are available I don't know if they are many available or not for general home use, but they are often used in high power car systems, and the fist comercially available one I saw actually being used was back in 1980 (27 years ago), so they are not all that new. But yes, they are extremely efficient. I always wanted to make one with a digital input directly controlling the PWM, thus elimination the need for a conventional D/A converter, but so far have been too lazy to do so.
Tom -- st2lemans ------------------------------------------------------------------------ st2lemans's Profile: http://forums.slimdevices.com/member.php?userid=9539 View this thread: http://forums.slimdevices.com/showthread.php?t=31789 _______________________________________________ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss