Upgrading from Audio Physic Sparks

I recently rediscovered my Audio Physic Sparks. They had been in a second system and not in my listening room. After a recent remodel driven by storm damage from this winter, I was able to add some room treatments. I randomly hooked them up and kind of fell in love with them all over.

The only thing lacking is some low end presence. I wanted to see if anyone has upgraded from the Sparks to the Scorpios or something similar and to see if they kept the magic of the Sparks while adding some bass.

I have added a Rel Storm with great low end extension. You can use either a Strata or Storm, around $700 on agon, both are down firing and great for music.