Subwoofer for classical music listener

actually maybe I bought two MH- crossovers for $600... sorry I can't remember!

Sorry if I am misunderstanding one of your posts, but if you are using the 2wq without a crossover in between the pre and power amp, it poses no danger to anything of course, but you are doubly reproducing a fairly wide range of frequencies from both the subs and the mains, because the subs have a reverse curve of the 1st order crossover that is anticipated to be used. This could mean way too much energy in the 50-100 hz range. But depending on your sub placement, I have no idea what reinforcements or nulls it could create, especially in conjunction with your room. To allow the bass to perform correctly and not have suckouts or boom that obscure the mids, make sure you get one of the Vandy crossovers.

Hopefully above wasn't from the Dept of Obvious...

After much difficulty I finally got to set up my used 2Wq sub only to find that the left channel doesn't work. I followed the directions in the manual exactly in setting up the wx-2 variable crossover, matching it to my amp. I checked all the connections several times for tightness and correctness.
 I even reversed the connectors to to the amp and the left channel still was out!
Both channels work fine without the wx-2 and sub attached.
Prior to getting the sub Richard Vandersteen himself wrote and warned me not to hook it up without the crossover as it would cause damage.  A very generous member of this forum lent me the wx-2 as it wasn't included by the seller.
After many hours of experimentation I still have gotten nowhere.
The seller says it worked fine for him with a fixed crossover.  He is sympathetic and is willing to give me a full refund.  I hate to return it because the one channel that works sounds great. I can only imagine how stereo would sound.
Does anyone have any ideas?

(((Sorry if I am misunderstanding one of your posts, but if you are using the 2wq without a crossover in between the pre and power amp, it poses no danger to anything of course,)))
Montaldo
I know you mean well but read the manual please
as you are very wrong here and giving bead advice.
You must always use either the assessment box or the proper high pass
 its that simple.

 rvpiano call me with a pen and pad at audio connection Verona NJ tomorrow and I will run you through proper set up.
 you most likely have the dip switches set incorrect.
 Best JohnnyR

Sorry if I misled ... I know you are supposed to use the crossover to get any kind of good results. But running the full range signal from the amp to the sub doesn't endanger the sub, does it? It just puts a bunch of higher frequency information to the sub, most of which rolls off.

I was absolutely not suggesting no crossover should be used ... I just saw a post that he might try it or was trying it. No danger, but probably bad sound, correct?