Vandersteen 2w or 2wq's


I have a nice pair of Vandersteen 3a sigs and was thinking about adding subwoofers.
Audiogon has listings for a pair of 2w's. My question is:
What differences are there between the 2w and 2wq's(besides the variable q) sound wise?
Should I be concerned about buying an old subwoofer-does anything wear out and need replacing?
Thanks Bob
Ag insider logo xs@2xgdnrbob
Re: Audioconnection
As a Vandersteen dealer, have you seen any issues with old 2w subs?
Mr. V said they were getting a bit old and more prone to problems.
gdnrbob
((As a Vandersteen dealer, have you seen any issues with old 2w subs?
Mr. V said they were getting a bit old and more prone to problems.))

We still have many folks with 2Ws operating issue free.
The problem with anything used is history or chance of abuse
 from prior owners.
You really need to be able to check out and verify. Purchase from an honorable source that's willing to back it up.

If you end up getting your 2nd 2W locally without an issue properly set up will still easily outperform any single unit....

A pair of the newer 2WQs offers a a more powerful internal amp/ much improved bracing and contour for more precise blending in a variety of different room types.

Tomics  Solar Energy..Ray Brown is well appreciated.
 This recording allows us to listen,adjust and achieve the right amount and tightness, feel or preferences with bass transition.
 By adjusting High Pass level / contour controls on each sub you tailor the bass to personal preference 2 subs achieve a far better in room response then one.
  When you get it right the whole system's musical involvement dramatically improves.
 JohnnyR
  
Johnny, Thanks for the detailed reply.
I ended up getting a pair of 2w's from someone in Michigan. He has good feedback, so let's hope for the best.
They are about 12 years old or so, so not too old. 
Amazon delivered Ray Brown, yesterday. I was a nice listen even without the subs.
I am reading and re-reading the 2w and 2wq manuals, as well as the M5-ht sheet. Is there anything else I need to do?
I posted on the cables forum regarding something good but not expensive. Can you or anyone on Agon provide some info?
Thanks Bob
i happen to be an Audioquest fan. I am sure others will weigh in on cables. Low of AQ and Richard Vandersteen share the DBS patent.