seeking advice: sub for sf concertino's

[fmm23@mac.com]

I have a pair of Sonus Faber Concertino's and want to add a subwoofer. SF has the Gravis sub, but I'd like some advice on other options, perhaps less than the $1300 that the Gravis commands. It will be used in a surround set-up with the SF solo center channel and Paradigm in-wall rear speakers.
Any advice to direct me to another sub?
It will be in full view in the corner of the room, so asthetics is important.
Of course, the right match to bring the best in sound is most important.
ANY ADVICE IS GREATLY APPRECIATED!!!
Frank

[Lex]

Musically speaking, REL would be the next recommendation. From there, M & K might be one to look at.

If you are more concerned with slam than accuracy, then many more options present themselves.

Lex

[Bitece]

Sorry-- I can't recommend a sub but would love to read your impressions of the concertinos!

[lmrizzo]

I have the Concerto and opted for the REL Strata III. Blend is perfect.