Question about Bob Mackie Mackie M-1400i Power Amplifier Car Audio Amplifier
Hi, the problem is probably a bad solder. I don't know how this amplifier is made, but if the 2 channels have this problem together you should start by re-solder properly the components of the power supply especially the auxiliary power supply for the preamp. If it's a class H amplifier, check the hi + and - .
Posted on Feb 11, 2009
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