DAS Vantec's are really nice. I picked up a pair along with a pair of Subs back in June. We already have DAS Aero 12's, 20's, LX 218's, Action 12A's etc. We needed something for smaller gigs. I have to say they are pretty impressive. We have used them with a full Band for a smaller gig and had more than enough headroom with plenty to go! You will not be disappointed with them. IMHO you will be happier with DAS over JBL any day of the week.
Full disclosure: I'm not just an owner I'm also a dealer. That said we are also dealers for several other brands. But we own DAS. I have owned DAS products since 2009, and have always been happy with them as well as the support from DAS. Our customers now expect the clarity and fullness they experience with our DAS gear.
If I can be of assistance to you let me know.