Subwoofer to match Vienna Acoustics Bach


I recently purchased a pair of Vienna Bachs. Currently I have a Harman Kardon amp/tuner..I listen to a variety of music, but also use this setup for home theatre. I am wondering what type / model subwoofer would be a good fit with the Bachs to compensate for the low frequency effects needed for many movies (in the $500-1000 price range).

Any ideas would be much appreciated.
kapa311
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.