Summary: These subs are really amazing! I have two of these p3d4 15's mounted in a ported box and my ears can not handle the bass at full volume for longer then 10 minutes! If anybody needs to be any louder they should just compete in spl competitions lol. I have these powered by a BRZ1200.10 amp in a 1 ohm load and these subs handle the power effortlessly!
southsidesmoka from Columbia, SC, Sonic Electronix
4 May 2012
Conclusion: It's a DVC, 15" Rockford Fosgate driver. It's what you would expect from RF. Hours upon hours of clear-cut, back-pounding bass. Anodized Aluminum cone has a different voicing to it than the old SPP cones I upgraded from. A great investment that will last a very, very long time.
Conclusion: I have 2 of these in a sealed box running off the 1700.1 brutus amp in my 05 lincoln town car and all i can say is WOW crazy bass and flex now i really need dynomat for my whole truck lol but love these subs.
SubmasterT from Overland Park, KS, Sonic Electronix
7 March 2012
Conclusion: I have one in a 3 cube ported box tuned to 32ish hz i believe. In an 02 ford ranger. It's loud. It shakes the front bumper on my truck. It broke the bottom of my 3 piece back window so the bottom of the windows are flapping around now. It can do a mild hair trick. Used my buddies meter running off his portable electric meter and it topped out at 140. Meaning It is probably just very slightly louder than 140db. Not the loudest obviously.
Conclusion: I went to a local audio shop and heard these 15s on my t-1000-bd amp and it hits so hard. I was gonna buy them from the shop until they said how much they are asking. This is the best website for any audio enthusiast. I will never purchase from a different online store for car audio or home audio.