Bought this sub to put in my bazooka tube since the bazooka sub just stopped working after about 2 days. This sub for the most part fit right into the bazooka tube, and since this sub is marine rated I actually bought ot for my boat. Boat is rockin now!

I just hooked these up yesterday to a 2500 watt Boss amp (I have it wired at 4 ohms which is only about 760 RMS) and boy, do these things sound pretty good! I put them in a sealed box divided, with .088 sg ft on each side (recommended air space). I doubt you'll win any competitions, but if you are looking for budget woofers that hit hard and sound good for the money, then these are the ones for you. All of my friends are very impressed, especially after I tell them what I paid for them, lol. My car is a hatchback, and you can hear these thumping from several blocks away. Great job Polk Audio on this model.

Let's cut to the point, buy this sub. I have two of them hooked up to a Hifonics 1000.1d amp at 1 ohm in a Fierce Audio dual 12" vented box, and they are very impressive. They don't boom, they knock. Very clean, but very loud. Highly recommend them!

For 360w an under power spl amp at 340w still sounds loud sittin outside of a bank one day lisen to yung jezzy hyponties after 2 sec one of banker asked me to turn it down so I did. I have a JVC deck the volume was only at 30. But overall I would buy a few more for my next car db polkaudio sub.

I used to own a polk and that thing slammed hard. This is almost the exact same subwoofer but the rubber is santoprene and not butyl. They have the same frequencies and wattage. The db sounds amazing. I think it sounds better than the Dxi I used to own. A must buy.

Recently purchased the DB1240DVC sub. It honestly is the most impressive sub I've ever run across. Cleanest, clearest, loudest low end imaginable. Thank you Polk Audio.
Matthew Smith

Best subs I've ever had.. have 2 running at 600 RMS in a ported box 1.6 cubic ft per chamber each.. and they take every minute of it! Hit highs good and hit lows good! Overall great subs I will buy again

I was a bit leery going in to this sub as i have always ran Pioneer and I am blown away by the power and output this thing produces. The one fall back is the wire hook ups on the sub

Polk speakers are great. Love the sound and quality.

I got a pair of these a few months ago and they have been incredible. The bass is tight and loud. I have them in a sealed .9 cu foot enclosure that I made myself hooked up to a Rockford Fosgate T500-1bd at 1 ohm. The gains are set at 30-40% and they rattle my car if I crank the volume pass 10 (max is 63) I love these as they have the precision of 10" and can bump like 12". I would definitely recommend them but be sure to add sound deadening and upgrade the door speakers so you get a full sound experience.

I just put one of these in my girlfriends car. Excellent range and surprising kick! The sub sounded a lot better than my kicker L5 as far as sound quality goes. Would recommend to anyone looking for a budget friendly sub

Had 2 of these in my car hooked up to a kenwood 1000w amp sounded very good and have very good range.

We built our own box according to specifications from the Polk Audio website. It was too large for the trunk so had to cut the back corner off so it would fit but you hear sounds from this speaker that you didn't know existed in the music. Fantastic punch, so get ready to rattle!