Nope! This sub lives right up to their reputation. That's why I picked it, and I don't regret it in the slightest. I listen to a wide variety of music from Dance, Trance, Pop, Rock, Classic Rock, Opera, Classical, and the occasional Pipe organ medley. This sub always delivers crisp clean bottom end! Tight and punchy when it needs to be, and then smooth and robust instantly. I have this attached to an Alpine amp and it's a great combo! I was going to do a JBL amp but I'm glad I went with the Alpine! Great job Boston Acoustics!