Tweaks to Add A Little Treble Emphasis...

tile floors
liven up the room

I agree with Tvad regarding the inherent differences in sound among loudspeakers. I've known some that have "built in" crispness or sizzle, top end rolloff, a forward or a distant perspective, relatively flat or 3-dimensional soundstage, etc. This can be said about other kinds of components as well. Nevertheless, there are numerous instances where fine tuning and mixing/matching can and do render desired changes or improvements.

If you think it sounds better using the software EQ, then use the software EQ.

A pre-amp with good tone controls, a separate equalizer, and/or a speaker with on board adjustments is the way most people would address this. Pretty straightforward and flexible solutions.

Nobody ever said audiophiles were normal though.

Otherwise, adjusting toe-in, tilt, and or other factors that affect exactly which way directional drivers are facing relative to the listener is another other solution guaranteed to have some effect.

Move the speakers in and nearer to your listening position.