Vandersteen 5 / Quatro Owners--anyone adding a third sub?


I have a pair of Model 5s and also have a "spare" 2Wq that's been in storage (and is currently for sale here on the 'gon).  If it does not sell, I plan to play around with it in my audio room along with the 5s.  Has anyone done this, and if so, any pointers in terms of placement, etc?  I'm going to put it on wheels with a long signal and power cable so I can just roll it around, but would appreciate any points of view.

My listening environment is a long, narrowish rectangle--essentially a formal living room and dining room that are one big space, roughly the proportions of a shoebox.   Speakers are at one end against short wall and listening position is just a bit less than halfway down the long axis.  Left speaker in a "standard" corner and right speaker doesn't have a sidewall (open to entry foyer). 
Thanks in advance for your wisdom!
kjweisner
Important, very to use vandertones, they are on the EQ freq centers and i believe ( not confirmed ) adjust for the RS meter.in essence calibrated.
I would reset using that first then add the sub...as you say, you have it !
I love unvarnished....
I talk to him about one time every moon, i will ask.
My guess after the grumble will be tune each side with it in circuit, measure at listening position..

My guess would be adding the sub would do more harm than good.  John Ruttan from Audio Connection in NJ would be able to advise you. Great guy who is very knowledgeable on anything Vandersteen and will go the extra mile (buying or not)  to help.

good luck,

Tom

Old thread, but using two more Vandersteen subs can be a great thing.  You can set up an arrayed system.  Even Richard has talked bout doing this. Said as long as it's set up properly, you can smooth out any nodes etc...  If you have the subs still, you should use them if they fit the room.