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Old 24th April 2012, 09:00 PM   #11
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Quote:
Originally Posted by sreten View Post
Hi, All 12V T-amps are already bridged output and you cannot bridge them, rgds, sreten.
counts volts on fingers and yes. Only about 4volts RMS, you're perfectly right. should have done that before, So, how are we going to get the best out of a stereo amp; biamping? Or just assume one side not working doubles battery life?
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Old 24th April 2012, 09:22 PM   #12
dangus is offline dangus  Canada
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Maybe it's a good idea to reverse engineer the power supply of a common Behringer or Mackie mini mixer to adapt it to 12V. You can't buy the parts to build one as cheaply.

Is there a mixer in Behringer's line of Mini devices? Those are very compact, but I suspect they all run off AC wall-warts. The BEAT800 phono preamp/beat counter uses a 1/2 wave rectifier to produce + and - rails from a 9V AC input. You might get away with substituting +12 and generating -12 or so with a DC-DC converter, if sharing a DC common with the power amp and other stuff isn't a problem. Otherwise, maybe an off-the-shelf DC-DC converter (isolated), or replace the rectifiers with faster ones and generate transformer coupled 9VAC somehow.
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