Best subwoofer's for $2k/pair???

I have a pair of ML electrostats (ESL9), NAD M22 amp, Marantz NR1608 (soon to be replaced with a real processor like NAD M17 or Anthem 60, gotta have those balanced outputs). Now I must turn my attention to the subs. Looking for a good pair that will match well with my system. I will be using these for tv as well as vinyl so I would assume sealed over ported for the tighter bass.
OK with all that said,... what would you recommend around $2 - $2.5k/pair. I've been looking at ML, SVS, and Rel but haven't had the pleasure to hear them in person yet