Need a "short list" of best Subwoofers for M.L.'s

I would sugguest a Hsu Research VTF-2. I use one with Aerius I's. For the money its an outstanding subwoofer

I love my Entec SW-1s with both my Sequel 2s (before) and my CLSIIs and Soundlabs (now). I have not heard the RELs, but I prefer stereo subwoofers and they would be very expensive (and probably overdone) as pairs. I have heard a pair of Vandersteens with CLSIIzs and was not impressed (but I don't think any of the four speakers were well set up).

The power of a REL Stadium with the speed of a Strata, at a lower cost than either. Fantastic sub. The only thing it lacks is an advertising budget:)

Check out Piega p sub 1

Stay with small drivers which are fast and pitch accurate.Vandersteen and REL are the nods I got and would have plonked down but went with floorstanders instead.Also I might still add the a sub and if I do am thinking of a good external X-over to handle a bi-amp and sub.