I installed the Volti crossovers, Dave A's SMAHL V2 tweeter, and the A-55-G/2 midrange drivers. There is a very nice range of adjustments for this crossover, so I opted to put everything on full blast to start. The La Scalas still sound like La Scalas, but with more detail and air. The bass is better, too. I need to let everything burn in for a few days to hear how everything settles.
So far, this is the best Heart's Dreamboat Annie has ever sounded.