Mosconi is not a cheap product, and may not appeal to everyone. While I have not heard them, I'm sure the quality is unmatched. But $1200 for a 400 watt amp is steep.
If you don't mind going used, Phoenix Gold Ti or ZX series had a good sound, IMO. Depending on how much power is needed, JL 300/4 or 450/4 are excellent choices. I would not recommend having them close to the sub enclosure, since the v1s tend to have iffy connections between main board and the crossover module. Easy repair, but a PITA. I really like the solid RCA connections and the versatile crossovers on the Slash series. The sound is quite good.
Aside from being more expensive than a lot of (arguably) comparable products, JL makes a very decent product. I have had nothing but great results, and my Focal experience reaffirmed it.