A Bright Pair of Watt Puppys

I'd love some suggestions on taming my bright system. My Watt Puppy 6's are really bright and it often seems on many recordings as though the tweeter and midrange are just way louder and more dominant than the bass. Often, to get more bass punch (or just warmer sound) I find myself wanting to turn the volume up. This helps the bass level a bit but also sends the rest of the spectrum thru the roof: it gets very loud.

Although I assume my room is too small for these speaks and I need some treatment, can't believe this is the only issue here. Watching other woofers at CES for example, the things extend rapidly right out of the enclosures on systems that sounded warm to me. My drivers barely move at all. Just doesn't seem right.

Also was told by the designer of Genesis speakers that my amp isn't powerful enough to control the bass on the Watt Puppys. That was a surprise.

Here's my system configuration:
WP 6
BAT VK-600
Bat 31-SE Preamp
Kimber 3033 speaker cables
Synergistic Research Alpha Sterling ITC
Shanling CD-100 dual output cd player
Furman power conditioner
Room Size: 15 x 25

Any suggestions? Anyone?
Thanks
/Lee