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.
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.
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 .
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.