I have a Polk Momo 12" DVC sub in my boat connected to a 1 ohm stable amp mono amp. It has worked fine for several trips and suddenly stopped working last weekend. I havent had a chance to pull the sub to look at it yet since it is behind the drivers kick panel. I did meter the speaker leads at the amp and it is showing 2 ohms (which it should since it is a DVC sub wired in series). The amp appears to still be working - all the lights are still working on it, no fuses blown. Any suggestions? What voltage range should the amp be giving me on the bridged speaker outputs? Do you think the sub could be blown?
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