so on saturday im going to be purchasing a Peavey JSX, and i tried the amp out with a guitar that had emg's (which were my guitars old pickups), i switched them to a jb 59 combo, and wanted to know if it would sound just as good with the amp or better, i personally prefer passive pickups but don't know how this will affect my tone. with the new amp that is.
the guitar is an ltd h 400 if that helps

thanks in advance
It'll sound good nonetheless. IMO, passives sound better than actives, and nothing screams passive like a JB.
My Gear:

Fender American HSS Stratocaster

Amps & Effects:
Hand-Wired JCM 800 2204
Hand-Wired V30 2x12 Cab
Keeley TS-9 Tube Screamer
ISP Decimator
EHX Holiest Grail
Modded Dunlop Crybaby
Boss RC-2 Loop Station