These are great subs, I bought 2 of them off my friend as I was impressed with their sealed box performance. I built a ported enclosure just over 1 cubic foot tuned to about 30 hz for under the seat of my extended cab Duramax. These things hit so hard down low its unbelievable shallow mount performance they are rated for 250watts each and i ran them @2 ohms on my mb quart reference mono amp good for 600 Watt rms @2 ohms. 1000 watts rms these guys would definitely blow. Look at rms or nominal (nom) wattage people. not peak or max wattage, those peak numbers will never be reached.
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