MTX jh300 amp Issue!

I installed the MTX Audio JackHammer JH300 600W, Class D in my truck. Powering two alpine type-s 10' subs. Im using a 50a fuse at the battery. 8 gauge B+ and ground. I had the subs working went for a drive and turned the truck off. The next time I turned the truck on the amp had the red + yellow light on and no power to the subs. The ground seems to be pretty good, I double checked all the connections.

Any help would be very appreciate as my car audio knowledge is somewhat limited. Thanks.

 
It probably blew, thats a very entry level amp (crap)

If not, make sure the fuse on your power wire matches the fuses in the amp. and check the fuses in the amp itself. Make sure your ground is to the frame with no paint on either side

 
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