I don't think any other brand is as personally invested in by its management/owner as Zed's amps. Plus, I don't know of any other brand whose CEO/Owner/Founder is also its lead designer and technician.
Rockford Fosgate T15k. That's the end all be all of amps IMO. Ground Zero Reference, Zuki, Mosconi, the new Zapco LE/LX amps look bitchin, Brax, JBL A6000GTi. I'm sure there are some I'm forgetting.
---------- Post added at 10:16 PM ---------- Previous post was at 10:16 PM ----------
Amps for subs- sundown, DD, Crescendo, Polk audio ?