Amp with best bass control

I wonder why my ears have never bled? Makes me kinda feel left out.

NL series of Edge amps...

Tight,fast and dynamic,with fineese, ie; Refinement,delicacy of performance, execution, and artisanship.

Everything you mentioned including 'lowest' can be attributed to the Acoustat TNT200. Especially in mono. Every time I think I'm experiencing the limitations of these amps, they surprise the hell out of me. They are brutally honest from the bottom, up. Mind you, mine are rebuilt/upgraded by Roy Esposito in Florida.

Best control per dollar? While I'm reluctant to suggest any "best" in audio (too many variables), for their current used prices I agree with Bdgregory, any of the Electron Kinetics amps - 2, 4, 7, 400 - are still hard to beat. Iverson knew what control meant.

In answer to your question; IME: most, but not all Krells.