JL Audio 6W3V3-4

Amazing

Bought 4 of the them to but under my back seat in my 2009 Ford F-150 Super Crew Cab. I made a custom box to fit. The hit hard and sound great. Small enough not to have to change any sitting.
Had them shipped to a location in the US and then shipped to me in the Middle East. Nothing else around like it.

Make your box to these specs for Awesomeness...

Had one of these from a prior project. Using 1/2" MDF Made a box 7 x 14 x 13 (.5417 cu ft) w/ a Precision 2" Flared Port kit cut-down to 10" total assembled length (Tune is about 36-37 Hz) firing out the side. Before closing the box... I put rubber Self-Adhesive Roof-flashing (avail at HDepot, Lowes) on all sides except (top-firing) baffle, be sure to use a roller to push-out any and all air pockets. Staple 1 layer of High-Loft Quilt Batting on all sides except baffle (avail at JOANN's Fabrics). On baffle I also glued some 1" x 6" strips in the middle of the open spaces to either side of the centered woofer cutout hole on the baffle to add rigidity. You'll need 6 Bar Clamps, and at least 2 90 degree clamps. I just used Tite Bond II Wood Glue. The only screws are to mount the sub, and on the Banana plugs Terminal plate I put on. In my ofc room I was underwhelmed and at low-to-mid 20Hz's I could hear a bit of port noise running off a 50 Wattt plate amp. But OH MAN when I put it in her XTERRA using 140 Watts Bridged at 4 Ohms... DAYUM!! I shocked the heck outta myself. The output was almost on par with the Infinity Ref 860W in 1.02 cu ft I had in their before she wanted a smaller setup. This lil booger really impressed me even more in this particular setup. The specs JL gives for the .25 cu ft slot-ported box suck because it has WAY too much port noise with those specs.

Bass Monster!

I bought one from Sonic and built the recommended sealed enclosure. This thing slams for it's size, it's comparable, if not better than some 8" subs. I'm running it on 170 watts rms and it sounds incredibly clean. It blends with my RF Power series coaxials nicely. You won't be disappointed with this sub if your looking for tight and accurate sound. Don't forget to buy the grille too!

Amazing subwoofer

I bought two of these, and they are amazing. They really bounce considering their size...

wow!

my friend has two of these in the truck of his car and when i sat in the car i thought he had 12's. These things beat hard for their size... im gettin a wall of them put in my suv
very good subs

A++++++++++++++++++++++++

I put this 6w3v3-4 in the back of my single cab pick up where the jack was in a custom box it fit like a glove an the seat still slides all the way back it sounds like if i have two 10"s in the back this is one bad a** sub. very happy A ++++++++++++++++++++++++++++++.

Excellente!

Performed beyond my expectations, simply excellent! The bass is just right, not enough to be a nuisance to other road user but enough to really enjoy music. I am buying another one for my other car.

wow

I have two of these in a 2007 frontier and they sound great. I really hate giving up space that is why I got these very nice.

Little beast behind the seat.

This sub packs a punch, and if set up right inside a well constructed box, outperforms the cheaper, 8" and 10" that I've heard. Looks amazing reversed as well. But the real winner on this amp is the size, for a sealed enclosure it only requires .15cf! You could put this thing under your kids bed and give him nightmares, 'cause this sub is a monster!

Perfect for small cars with little to no room like my MR2 Rev.2, MX-5 etc.

Great for precision and filling out the bottom end of your frequencies, but can't compete with the larger, properly installed and powered 8 and 10" subs but still a stunner!

Jl audio 6w3v3-4

I would recommend this sub to someone who wants that little extra bit of bass without over doing it. They work great for metal and rock and would pair up great with a bigger sub to get some of the higher ranged tones.