Any recommendations on this. I currently have some Def Tech AW 5500 outdoor speakers but would like a little bit more bass and would like to add a small 6' or 8' sub to enhance the low frequencies. Any recommentations? My limit is $100.

Thank you.

That's a tough price to get a decent sub with. I would go to your local CC and see if they have any "Element" brand 12" subwoofers left. It's ok, and you might be able to pick one up for $65.00 or so.