Vandersteen 5a vs Quatro ct which do you choose?

M-db
which subs would you suggest? 

vandersteen with built in subs work great the cabinets and slot loading work well. i stand by my comments about the massive and articulate push pull aluminum cone driver in the 5, 5a, 5a carbon and the 7
i suspect that a pair of sub 3 and Treo CT could properly setup do better than Quattro CT but w cables, i think you are a best looking at price parity...

what a cool geek out forest of boxes, wire and great sound, with lower WAF than Quattro....

tooth2th, even though I've never even seen or know anything about their setup procedure the suggestions for the Vandersteen Sub 3s with their eleven bands of EQ look to be a no brainer. 

I lust for the Sub-3's, but they are out of my financial league.
But, to be fair, my 2wq's are no slouches with my Treo's.
If the OP is buying used Treo's, it would be a great move.
FWIW, buying Treo's and 2wq subs should bring you to more than 80% of a pair of Quatro's...
It just depends upon how much you want to spend.
Bob