This amp was pushing one Kicker svc 2 ohm CVR pretty good in mono bridged mode. Well, I bought a second sub and went to a bigger power and ground, (4 ga), and now it's blowing the right hand fuse. (as you are looking at the fuse end) I unhooked the other sub, and still doing the same. I have removed the circuit board to see anything obvious, but nothing stands out. I have a good test meter, but need help to find out what and how to check it. Any help would be appreciated.
Sounds like you have a shorted transistor(s). they often don't show physical damage when they go. Check each of the 3 legs of the big transistors with the power off, there are 4 on each side of the amp. Set your meter to lowest ohms range and probe between the 2 outside legs and then from each outside leg to the center leg. If you get around 0 ohms between 2 legs you probley have a bad transistor. 0 ohms between all 3 and you deffinatley have a bad transistor. Once you find a bad one all 4 should probley be replaced. If your lucky nothing else was damaged on the board. If you miss something else its likley that the new transistors will smoke. You amp is rated for minimum 2 ohms bridged
Brian
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yes, it calls for a 40 amp on each side
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