Amp with best bass control

There is of course no best so it is better to ask which amp do you favor for their "Kung Fu" grip etc. Or simply which amp is your favorite bass amps. I really don't know that has not been a real priority of mine. I am told however that the early Krells were hard to beat in terms of bass. I like bass but focus on other aspects of the sound.

I vote for Krell, Krell and Krell!, The death grip of amps!

Krell, Bryston, Sim, Boulder, Musical Fidelity