System needs more watts??

Folks

I've now enjoyed my system for about 2 years now, and starting to think about upgrading or adding to it. Any thoughts of what I should do to increase my listening experience?

I love my system right now, but feel that I need to turn up the volume a little more to get the full dynamics and "thickness" of each note/sound. Do you think the main reason is because I don't have enough wattage behind my BAT75SE?? I also heard that it could be my power cords? I heard they could make bigggg difference? Appreciate your thoughts/advice?

Thanks,

Current system:
Cary 303/100 CD player
Audible Illusions 3A preamp
BAT 75SE
Dali 800 MKII
Synergistic Research Galileo speaker cells
BASIK strings I/Cs