Installed this in a custom sealed box in my 350z and it sounds great. I had the old, thicker 12" Type R and this sounds just as amazing. I even installed this in the worst location (the compartment behind the driver's side seat in the 350z) and it still sounds awesome. Can't even beat the price anywhere else.

I bought this sub to go in my 08 Tundra. When I started my audio build I initially went with the Rockford P3 10' shallow sub, then upgraded to the P3 12', and finally to this sub. This sound undoubtibly sounds better that both of the previous subs, it will really handle the lows alot better than I expected. And right now I only have and MRP 500 pushing it. I am not even sure I will upgrade the amp it just sounds and pounds so good now. It is a little $ but you get what you pay for, and out of all the shallow subs I have heard this one is the cleanest, tightest, most accurate I have heard.
Semper Fi

I bought this sub 6 months ago and put it behind the seat in my Dodge Ram 1500 standard cab truck and it pounds so hard. I would definitely recommend it to anyone who's looking to get a lot of sound and power out of such a thin sub.

I have an f 150 supercrew. I have the alpine in an enclosed box underneath the seat with an alpine m500 powering it. The speaker hits hard. It rattles my rear view mirror. The range is pretty good, but it doesn't hit as low as my old 12" kicker cvx. However it's compact design eliminates a big box on my back seat, and I love that. Overall, I love this sub. A definite bonus addition to replace big bulky boxes sliding around the back seat.

It's the slim design of course - fits right under the seat in it's enclosure in my pickup. But I also wanted a sub that provided clear reproduction without being boomy. This Alpine meets its traditional fame for doing just that. I listen to a broad range of genres and this sub is perfect for everything from classical to prog rock.

Would recommend, good sound solid product.

Very well built thin/shallow sub. If your restricted to needing a shallow sub this is one of the best out there. Very clean in a sealed enclosure for one 12" at roughly .72 ft3.

Not as much output as a regular sub so keep that in mind. Worth the money if you have to go this route.

The slimline Subwoofer has a nice sleek design and it sounds great. I also liked the service that sonic Electronics provided to me here in Australia, very reasonable shipping cost for an item this size. Thank you. CH

I am very pleased with the performance of this sub. I was skeptical about how good it would sound compared to a regular 12" and it totally exceeded my expectations. I am running it with an '10 Apline PDX M6. I built the enclosure to manufacturers volume recommendations and it's perfect.
I had to custom build a funky shaped box to fit behind the back seats of my '09 Tacoma double cab. I went to a few car audio shows and have by far the highest SPL Tacoma in Edmonton with an OEM style system (no huge box in the cab)

As long as your enclosure volume is correct you will love this sub.

Bought this sub to go in my truck due to lack of space. I have had Type R 12"s before and they sounded great. Props to Alpine for getting it right on the shallow mount. I have heard several shallows, and none compare. Just one in a small box hits pretty hard, it won't blow your mind but its a good sub. I would not pay what other places charge for this woofer, some up to 500, but for what its listed for here its a great deal when space is an issue. I will say the box and power are very important. I had it in a .4 cubic foot box and it sounded terrible, switched to a .75 box and it made a world of difference. Give it at least 500 watts rms too, trust me it needs it. Also, make sure to get a grill, although its constructed very well the cone will take dents very easily.

WOW!! I must say that alpine did it again! This shallow mount sub is by far the best i have heard! If i didnt no that they were shallows, i could swear the sound like reg 12s. Dont settle for anything else!

I had 3 of these installed in my dodge 1500.
The sound is unbelievable. I have a Rockford
Amp pushing them all in a series with a 1 ohm load
Would defiantly recommend.

Love this woofer.

I got one of these T-12 for my 07 chevy crew cab. Built a custom ported box too Alpine specs to fit behind the back seat. I'm running it with a Kicker ZX1000.1 (4ohms 500watts rms). I have had it for less then six months and it is dead "internal meltdown"!! It had awesome sound, hard hitter, feel it in your chest!!! When it went i was not even playing it loud. This is the only sub i have ever blown. I've had Kicker & JL. Hope this helps somebody in the future.