Conclusion: I bought these to replace my older model rockford fosgate 12" p2's. I love the new design the subs are longer than original and a lot more punch, i have thess hooked up to a p300.2 amp thats pushing about 943rms...great value awesome power.
Conclusion: Great product, well built, great price. Bought these subs a month ago and paired them with rockford a 750.1 amplifier and wired the subs to 1 ohm impedance. In a dual box in the back of my 02 trans am and the flex I get from these are amazing.
Conclusion: I have two of these in a ~4.5cu ft box tuned to 30hz. Slams so hard and gets low with ease. Blows away my sealed Fi Q on 2000W. Couldn't recommend these subs more. Huge Rockford fan and have always been happy with their products.