So as a winter setup I put 3 cheap pioneer 12"s in my truck (tsw3000) and a hifonics Brutus 2600. It's wired to .66 ohm final load. One day while listening to music I started getting random loud bass hits, so I checked my ground and rca's, they were all fine. I turned it off and back on again and the problem seemed to be gone. About a week later I had another loud random bass hit and it blew my inline fuse. After replacing my fuse I tried to turn it on again (at zero volume) and the random hard bass hits continued. After about 3 seconds all my subs starting moving slowly up and down (about once every two seconds) and nothing else happens. I'm assuming the .66 ohm load cooked the amp, but I just want a second opinion before I start tearing things apart. Thanks

 

I would say that you're on the right track. It scares me a little that it cooked your fuse (assuming that the proper sized fuse is being used).

 

I was using a 150a in line.