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 

I like the extremely underrated Vandersteen subwoofer.

Don't you find your phrase about subs and bottom too trivial... Of course if you eat too much subs you'll get bigger bottom!

ATC C1 MK2 subwoofer : choice of real wood veneer cabinets, premium hand-built drivers, and ATC’s standard 6 year warranty. Highly recommended.

Best of breed in the up to $4K strata, that I auditioned (and bought) to complement my HARBETH speakers.

https://www.theabsolutesound.com/articles/atc-loudspeaker-technology-launches-c1-sub-mk2-active-subwoofer/

https://www.whathifi.com/news/atc-launches-compact-c1-sub-mk2-active-subwoofer