Rockford Fosgate P2D4-8 Punch 8" P2 4-Ohm DVC Subwoofer

Easy install. Great sound quality. Made with good components. A little heavy in a good way because of the magnet which helps produce good sound. Perfect fit for ported box.

Awesome subs. Rockford Fosgate has been making high quality products for as long as they've been around. And these are no exception. Having owned Rockford, Sony, Sundown, Tantric, JL, and Kicker, I can easily say Rockford is one of my favorites. Obviously Sundown and Tantric are gonna have better SPL because of their extreme excursion and titanic motor size. But when it comes to sound quality and reliability Rockford takes the cake. I definitely could have gotten more sound out of them if I had tuned the box they're in a little higher, but at 33 hz they sound alright. I recommend if you're not a rap or dubstep listener to tune your box a little higher around 44-50 hz. I have 4 of them in a 2.6 c/f usable air space box. Nothing special, just well built, double baffled birch box. Pushing them with a Rockford R1200x1, birth sheet says 1310 watts, tuned with an O scope the amp is pushing 1287 watts clean power to them. Just over 300 apiece. I haven't metered them yet, but i'd estimate 140 db, maybe a little higher. Awesome subs for filling in the low end, but if you want alot of sound do at least 5 of them. And you can because they're cheap.

I have a 07 Acura TL type S, got tired of the crappy 8" sub that came with the car and decided to replace it. Well, I wont lie, I had to do some crazy mod's to get this in there to include taking a jigsaw to the bottom of the backdeck. Had to create a space big enough for the magnet to fit through. Well, after some other mods I had to do to get it to fit, even though this speaker is SEVERLY underpowered it sounds AMAZING... I went to a few different places in person to talk about something to power the sub with and found out that I would've done better getting a marine 8" speaker to replace it with because of the shallow mount and the fact that they don't need an enclosure (in case for anybody that's trying to do the same thing I did. However, I ordered an Audiopipe amp and from Amazon and saved about $100 there and as soon as I receive it will have PLENTY of power. I hope that this helps anybody thinking about getting this speaker, but I can only reply based on my experience. However my wife has 2 Punch P2-10's in her Mustang and with a 600 watt amp will rock your face off... I will update this review when I install my amp to talk about how much better it sounds. Hope I helped!

This review is for a Rockford Fosgate P2SD2-8. I have previously purchased the older version of this subwoofer from around 2003 from crutchfield, and that version died a little bit before this review. It lasted a long time. But that version only required 150w to produce 83 decibels, this version requires 250w. Seems odd to me that the newer version is less efficient than the older (or very older in my case). Anyway, it fit my box with the screw holes in the exact same position. I heard a distortion in one of the two subs in my box. It was from the sub on that side drawing air through the drill holes, or maybe the larger hole. A large amount of silicone fixed that issue. So if you hear the sub distorting, try using more silicone around the the holes. This was my second purchase of this item, from Amazon itself. Previously I purchased from a third party seller, Absolute Pro Music, which sent it via USP with signature verification. They did not tell me that a signature would be a requirement for a $100 item. I've previously purchased camera lenses for $x,xxx without needing a signature. WTF, right? So when UPS came and I wasn't there, it got sent back. It took about two weeks to return back, and then I waited two weeks for a refund. A whole month. Eventually I contacted amazon customer support and forced a refund. Just make sure the "sold by" field is by Amazon, and not a third party. I have no idea why they had a third party for this item by default even though amazon sells the item themselves. You can select Amazon in the "Other sellers on Amazon" list.

Ok so I didn't really get to use it what I intended it for because it is a tall sub. But I did not return it because I had already taken it out and didn't really want the hassle of shipping it back because of my stubbornness. I did manage to use it for a home stereo set up. Basically gutted a old radio shack Optimus speaker box and installed it in there. It looks pretty bad ass and fit perfectly. It sounds pretty good but definitely not hitting its potential. Needs lots more juice. But over all it came packaged nice and protected I like using sonic electronix for car audio. I go directly to there site find what I need then order it through amazon. Overall the sub is nice and tight if you got room try one its def a good sub. Unfortunately I gotta use 1 of 2 subs a ken wood or a kicker comp rt oh well mistake

Very stiff on arrival. Maybe it needs a long break in. With any power it cracks and pops. The worst initial experience with a subwoofer ever! I will try to get it setup and broken in before I decide to return. I should have gone with a different model or brand maybe. I love RF products and wanted to keep with the family. It is installed in a custom sealed box that is about .25 cf. Next few days will tell but right now I am not happy. My door speakers seem to over power this sub. Mine may be broken because it does sound good at very low volume. With any more volume beyond 1/3 it cracks and pops. I'm only @ about 250w. Update: I returned it on Aug 21. I am still waiting for my return as of Sep 17. UPS lost it I guess. Update 2: Sept 29, still have not got a refund. Not happy. Update 3: Amazon finally refunded the order. Seller was having difficulty with UPS and couldn't/wouldn't do anything about it in a reasonable time. Not sure this was the fault of the seller or not. They were very slow to respond and each time it seemed like the first time I contacted them.

So I am in the process of returning this subwoofer, but I spent so much time learning about it, I felt that I should post a review. I've had a 10' JL wedge box with a 250w JL amp in my car for the last 3 years. It performs fine but sometimes bottoms out - it just doesn't have the kick I was looking for.. but I didn't want to be that 30 year old guy bumping down the street so I refuse to upgrade to anything much bigger. I thought I would take a chance and try a high-end 8 inch sub with more power, so I bought this P2D4-8 and powered it with a R500X1D Rockford Fosgate amp. I put the sub in a 0.30 ft^3 box which is slightly larger than the ideal 0.23. I wired the sub in parallel under a 2 ohm load using 18 gauge wire. The sub performed poorly under these conditions so I did some investigating and called up the people who sold me the box (on ebay) - they are called bright star car audio. Their advice was to upgrade the speaker wire and to re-wire my parallel wiring. I originally wired the amp directly to one voice coil, then jumpered that voice coil to the next. Apparently that's a poor wiring job and what you really should do is wire the amps positive to one voice coil, then the amps negative to the other voice coil then jumper to the remaining unwired terminals, exactly as the P2D4 manual suggests. I had just assumed that it didn't matter. After making these changes I did hear a noticeable improvement in the sub's performance. However, the performance is still lacking in my expectations. I think the sub is great but it doesn't line up with my original expectations. As a result I'm replacing the 8 with a JL 10W3v3-2.

I had an early model pair of these in my SUV and played them until they wore out the surround/suspension, they sounded killer! I bought another set to replace them and the new set had a new style rubber surround and at first they were tight and had weak bass, I thought there was something wrong with them but after a few weeks they started to loosen up and sound good! I just bought another pair of these for my new car. They seem pretty stiff out of the box but they should loosen up after a few weeks.

No issues product is good .

First of all , thank you ! Thanks for understanding my delivery hurry and thanks for kindness. Great product , it was what i expected

Works really great just a bit bigger than the opening had to modify the outer diameter is bigger than the oroginal but sounds grest

気持ちいい音で、鳴くので買って良かったです

These subs are overly stiff and a bit overly priced. I’m not sure you could even recone it if it blows up. Also, you need at least 300 watts to get some movement. Then you worry it might blow up. I wouldn’t buy another one. I would buy JL audio or Sundown. This sub is made in China. I thought Fosgate was USA. Big disappointment.