Musician vs. audiophile

We need direction here. My wife, a musician and says my Sophia 3s, powered by BAT 3VK IX tube pre amp and 250w solid state amp sounds flat compared to a freaking Best Buy box store McIntosh/Martin Logan setup...  I can't honestly disagree, specifically when our rig is at low volume.  It lacks color and punch, even with 2ea. JL 12" subs... Help me with your recommendation, please!!!