These subs require a rather large, ported box, to yield the absolute best results. I built the recommended size sealed box and the results were ok, when I built the large ported box, the results were unbelievable! Awesome Product!

I run a single dual 4ohm 15" L7 in a large sealed box in my Prizm and it's one of my favorite subs I've had to date. It sounds great on normal music (rock, etc).. but when I want it loud it beats fairly hard. I can only imagine if I had gone ported.
It's getting pushed by a 1200rms @ 2ohms olddddd PowerAcoustik amp.. not spectacular, but it works.
For the price there's other options that are just as good.. but I'm very happy with the L7. It takes what I throw at it and that's what counts.

I have 2 of these wired up to 2 kicker IX1000s, in a 2 ohm load in a custom built box in my 2013 ford explorer XLT. Great sound, great thump, but I have had one major problem just recently, at low volumes the subwoofer just blew out. Not sure what happened, but it just siezed up and quit working. But other than that, it has been a solid performer.

I recently purchased the kicker l7 and I have to say im impressed..just 1 in my cavalier is more than enough...but make sure you buy a decent amp!!

i had one in a 1997 Accord and a 2500 watt mono amp. This thing beat by far. As good as my sundown audio S A.12s. I would prefer this sub to every body who likes very clean bass. I love kicker and i always will. kicker has made some of the best subs i have ever had. You go kicker keep this coming .....thanks sonic.

Great sub!!!! Blew the back off the box I ordered wth it!!!!

One of the best subs made by far. I highly suggest you buy. I have mine in a custom box on a 2500 brutus with a factory radio and it hits so hard i plew my 6x9s out and knocked my rearview off.

This is the loudest sub I have ever owned. I would recommend this speaker to any one who loves the to shake the earth.

This sub offers and incredible amount of bass especially for it's size. Insane for what it outputs and I would recommend to anyone who loves pushing away competitors with loud and clear bass.