If you have 50ish watts a side theJBL 4367’s are great. Even with the the 15” woofer, it won’t go down to 35dbs, but if you find you want more bass, one powered subwoofer should be enough to fill in.
All the best.
It's been over 30 years ago since I last listened to the JBL 4435's and their smaller siblings, the 4430 (some years earlier, around 1980, I remember listening to a pair of Yamaha FX-3's - also quite impressive monitors, for a pair of young ears not least). Those were also the days of the Everest DD55000 and K2 S9500, and of the four of them I favored the K2 S9500's for their outright dynamics, coherency and MTM configuration. Indeed at the time they were my dream speakers. I'd have cherished listening to them actively configured - to think it would have made them even more dynamically astute, and resolved sounding.
I little more money but a ridiculous bargain is this used Volti Vittora. A definite step up from the La Scala. I’d buy them but I don’t have the room.