i started out with an RF t8004 that made them sound amazing, but then i moved to a pg 200.4 for power issues, which made them sound lovely, just had to make doubly sure it was tuned properly...my pg 200.4 burnt up, so while im looking for something else i'm currently using an xt1600 which makes them sound pretty decent, but not the best...
never tried the JL's on them, im sure they would sound good...its all in constant power and tuning with the bostons...