meal, so, I need help. I was just testing my beachradio and, for the test, I hung my esb ra 74040-X as an amp. when I wanted to unscrew the minus-LS cable, it sparked and the fuse was through (2x10A, is just ́n beachradio). I just put in 2x15s, and the two come in even if you turn on the radio and thus the amp. why does it spark when I play on the LS cable (ton didn ́t come out before) and thus I shot my esb. n? that would be…uh…very bad. as I said, usually serves as an amp for the beach radio oller pyle amplifier and the esb hung only test-wise. mfg