What are the best subwoofers you have heard for music. Speed, Musicality and integration

@ricksgiving i love having subs in my system.  Helps bottom end 

@sns  I agree. Rel all day. 

It’s the way they connect. They keep up with the music. The speak on connect is key.  Also they don’t try to hit ridiculously hard which with music would sound unreal.  They are nimble and easy to integrate. 

@mahler123 tell is your thoughts when you get them in