Sub for Merlin TSM-MX's

What Amp do you use to run the speakers ?
I use TSM MMe's in a 14X11 room with a CS-600 amp and the bass is very articulate and with good SPL (Except for low stuff like Organ music). it could be an Amp synergy or placement thing as well...

in fact have de-commissioned y sub for HT use since I got the Merlins

The reason I asked the question was, I did find a Sub useful when I used to run my merlins with a sugden A21, but the moment i upgraded my amp to a leben CS600, the bass just improved and I did not need it anymore.

But if a sub is needed i would recomend a good Sealed box sub..a REL strata is great and so is an MJ acoustics Ref 100

Bobby, I changed my speaker setup to a corner placement and i find the Bass very tuneful and controlled so the placement factor also needs to be considered.