Most coherent low volume speaker with very fast bass under 10k used?

Totem Wind or Forest Signatures...musical at low and high volume.  

Totems create dynamic tension and contrast at low and loud volumes, although instinctively you don't feel compelled to blast the music when realistic dynamics are created at less than ear bleed levels!

The amp used to drive the speakers is more important to how fast/well controlled the woofers etc.. will respond.  Hard to find gutsy amps these days that can grip a speaker and control it!