[SlowX6M]

Originally Posted by RL18

I'm no expert on it either. Just learning since I ran into these issues upgrading my system.

This thread will explain things better. It's e90 but will apply to our e70s: https://www.e90post.com/forums/showthread.php?t=641323

I'm pretty happy with the system now, so I think I'll leave it alone. I may try the Infiniti tweeters since they handle more range and properly filtered. I do not hear much difference with the B&W diamond tweeter vs Bimmertech tweeter (so far I only installed one, in the center), but I think I may be compromising the B&W tweeter with the stock filter.