Subwoofer to match Vienna Acoustics Bach

I'd add a pair of Vandersteen 2wq's to your short list. Fantastic blend by drawing signal from the speaker level outputs from your amp...but doesnt' draw any power because of input imedance of the sub amp..

I'm currently running a REL Storm III with my Bachs. Of course, your experience may vary, but in my opinion there was a huge difference between the Strata and the Storm. I would suggest waiting for a good deal on a Storm III--really an excellent match.

I have a pair of Mozarts, and my M&K mx350 compliments them very well. Because the Viennas are good with high frequencies, and the M&K has great deep low bass, the separation of sound makes for a utopia of high frequency sound, and that kick in the chest deep bass from M&K. I tested the Paradigm Servo 15 but found that the m&k just pleased me more. it hits hard and vibrates your chest inside your lungs.

Try the James EMB-1000 Very musical and it's very Fast.
This Sub has rave reviews,go on the James website and check it out.
This is one sleeper Sub,I don't think they do much advertising.

Thanks for all the useful options. I ended up with the James sub, which has proven to be excellent for music and movies.