Good small sub.

You want "real bass" and small size? Hmm.
The best sub to compliment the full range speaker definitely is REL.

I really like my M&K MX-700. I used to be a double bassist, and I like real bass, too.

I am also a big fan of REL, although even the Strata is not tiny. For really small, but still useful, you can try the Velodyne HGS-10.

Hi Guys,
Mine is an opposite, I like my current Infinity L-20 very much (even though it was discontinued long before. I prefer high frec. more. Help me to find, is there any Stand -alone Tweeter (just like Sub-woofer for Bass) as an optional to one's currrent system ?? HELP....

I recently bought the Velodyne HGS-10. It's not cheap, but it puts out. And it is real small and well built.