Musical subwoofer for under 1K


I'm looking for a new/used subwoofer that will work well with my ML aerius's. I would like to keep it under $1k. I listen to music 1st, H/T 2nd. Room size is 18x24.
timinator6
Tim,

Not sure if you're still monitoring this string...I have M/L Aerius's as well and am looking for a sub...how did the Vndersteen 2W you got work out?

Mitch
Do not by any subwoofer before listening to the Bag End Infra Sub-18. Very musical. 400W and goes down to 8 HZ (if you can hear it!). I own one after intensive research, including help from this site. Was rated the highest on the "Stereophile Guide to Home Theater". I listen to music 99%. This is it for me!
Try an AAD C-10, I think it is, way below $1,000 and I just installed one with a friends Aerius i speakers and it worked very fine indeed. Do not run the Aerius out of the sub, use its internal crossover, just add the subwoofer in parallel with your speakers (a la the REL method), set the crossover point on the sub to its lowest point and play with the volume level on the sub, move it around, and move your Aerius a bit further out from the wall than you had it before. You could afford 2 new ones for around $1,000.
Has anyone heard the ACI Titan or Titan II? They start at about $799 and have gotten rave reviews on audioreview.com.
I was thinking of pairing these with Maggies.
Mitch, Martin Logan markets the EXOS active crossover exactly for what you are attempting to do. I do not know how much it costs but if it is expensive I imagine a third party active crossover would work just as well.