I have one of these mounted to the back seat of my Yukon, they power my 2 12" Alpine Type-R's. Only having one of these amps, I'm only pushing 550 Watts RMS to my subs. So yes, I'm under-powering them. If I really wanted to, I could buy another one of these so I'd push 1100watts to each of my subs. I would recommend this amp to anyone (especially if you have Alpine Type-R's). It's made by Alpine, so it's a great product.
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