Thanks duramax747 for the compliments and the info!
The FrontRow replaced AU24SX. I was kind of disappointed at first. Sound was dull and lacked air. Mids were congested too. They are coming around though. No changes in the bass which is one area where there is a definite gain in texture and depth over the SX, but definitely cleared up the mids so far. Treble is improving as well.
Running signal thru them 24/7. Will wait few weeks to draw final conclusions.