Hi folks.... I have never owned a Dentron amp and currently run Alpha. A friend uses the MLA 2500 with a pair of 8875's. The amp will run 1200w out, and then suddenly drop to 600w. Within 15-20 seconds, it will come back to full power out. He thinks it's a tube.......I wonder. Anyone have experience with this issue? Thanks.................73 John K4NP