Subs: Vandersteen 2wq, TBI Magellan VIII

Folks,

As you can tell from some of my other posts, I'm busily working away at two systems. I'm now shopping subwoofers, albeit with some dread: with few exceptions, I've never really heard a satisfying bit of system integration.

Now, one of my systems uses small monitors (Harbeth Monitor 30s, to be exact). System #2 is still a toss-up between Quads and Maggies. The subs would be for the monitors but, hopefully, be interchangeable between both systems. Also -- and this might make everything moot -- I'd rather not buy 2 subs. Then, we're looking at a minimum of $3.5K+ investment and, for that kind of money, I'd just as soon buy bigger full range speakers and call it good.

I've heard and read good things about both units in the subject line. Vandersteen is a known entity, the design and use of the 2Wq seems smart and makes sense. I've read great things about the Magellan. Then again, their Web site seems a bit flakey, there aren't many dealers, etc. But ya never know, right?

Thoughts, opinions?