I installed them the day after xmas & they're awesome! I have HK & I've broken them in already. I noticed I don't have to play them as loud, or have the eq seriously tweaked to make it sound really good. Biggest improvement I've noticed is the overall sound is much more accurate & not muddy. I jumped on the pre buy, got them early December, & got the gasket & the $15 Amazon card about a week later. I'm very satisfied with them. I had earthquakes on my '08 535i w/HK, but I was missing the mid-bass frequencies & wound up putting back in the OEM woofers. They were never an option for me in my f-10, so I was committed to waiting on Bavsound, & I wasn't at all disappointed.
