Summary: I have had the previous model 320i for 20+ years and moved them between my cars, I still have them and enjoy them greatly, I have MB Quart on my other car and I have had KEF, Boston Pro and other hight end espeakers in my cars before, nothing comes close to this level of qauality. I still have not heard anything that can beat it.
Summary: These speakers are impressive. The highs are very detailed and do not break down even at very high levels. I have 2 pairs of components in my extended cab truck and it sounds amazing. I did use a lot of dynamat and fiberglass to fill behind the speakers. At first I didn't filter the amp output at all, but after hearing the woofer cones bottom out on hard bass hits when the volume is high, I set the HP at 50hz on my amp. Perfect fix!Audio Nirvana to me!
Summary: I mainly submitted this review to answer some of the concerns in the other reviews posted here. First , while this speaker is fairly linear across the power band given to it , it doesn't really come alive untill you put power to it . Reading what some of the other owners are using , some of the SQ problems they're experiencing are due to lack of enough power. I'm using two PPI 2600 amplifiers bridged on my highs which is 600 watts per kick panel.
Summary: Overall, I am extremely happy with these speakers. I guess I could have sprung for two more P240 amps (or bought 2 P440's in the first place) but when cruising with the windows up, and when high power is not asked for, this amp/speaker combination is out-of-this-world. The only attribute that could use improvement is imaging.