I have 2 of these on a prime 500-1 in a prefab ported box. They did a 142 on the meter. Great subs for the money and I highly recommend. Sonic has great service to I got these in 2 days with just standard shipping.

Good subwoofers. No problems so far. They pound hard with the right wattage.

Great subs for price. Dont distort at all with my set up. Even ran them at 2 ohms and theyre holding up nicely. They be thumpin holmes

This is my first purchase of the 2011 line of Punch subwoofers and I must say I like the design and look of these better than the previous line of which I have two 12", although those are wonderful subs as well. I don't really have room for a 15 in any of my vehicles but was missing that deep, "feel it not hear it" bass that only a 15 can provide so I got one of these to add to my garage stereo and I am very happy with this sub. I am pushing the P1S4-15 off of a Fosgate Power 500bd @ a 4 ohm load so the sub is getting at least 250 watts rms and it seems to be a perfect match. I doubt my neighbors are gonna like my new toy very much.