Fatgh0st
My room is just under 14w x just over 20L with 8 ceilings. Until recently it had two openings, one to either side. One midway back on the left, and another all the way back on the right side. Near field listening was the only place to gain good balance, left to right. Great Bass was really difficult to acquire too.
The comments I made thus far were all applicable to the room in that config. I've since closed off the room by adding doors there just a couple months back.
That room doubles for me as well, as an HT and 2 ch listening room. Give or take a bit here or there, you have your room just like mine.
In fact your musical tastes, save for the rock, are mine as well.... and I do play rock as well, just not a lot. Def Lep, ZZ, Whitesnake, Lynyrd, Styx, Ozzie, Matchbox, etc.
As far as integrating a sub for 2 ch it shouldn't be too hard. Surely not expensive either. Especially if the "???" int has a set of preamp outs. Most do. Run the sub off them with a pair of RCA cables you can get at Radio Shack cheap... I do/did. they work fine. $20-40. If the sub has phase contrOls you might not even have to move it much if at all.
...AND YOU MAY NOT EVEN WANT TOO INCORPORATE THE SUB... BUT it's there if you have to.
Tube rolling = exchanging tubes in a piece of tube gear. I guess the term came from a while back 'cause once you take 'em out and lay 'em down while putting in other ones, they could roll if not on a level surface. ??
The Flavor of the tube piece is dependant upon the tubes being used within it. Differenet tube brands? Different sound.
that is to say, if it has JJ Tesla's 6922's, and you replace those with say, Amperex 6922's, the sound will differ. in fact the whole shooting match can change. Sound stage, bass, impact, openess, liquidity, etc.
Tjhis goes for all the tubes. inputs or drivers, and output tubes too. Even the same tube, yet a different vintage, can and do sound differently. for some this is a true joy, having such flexibility. For me it was a consternation.
But even a blind squirrel can find an acorn now and then. I did find the compliment of tubes that suits me without too much trouble.
you should be fine. Especially given your mention of gaining more from the mid bass on up is more important to you. you'll still get that which your speakers can put out in the bass region.... it'll just be different... but the musical info will still be there.
one other thing... you said the back end of the room was open. If you only ran some heavy curtains across that area behind the couches, which you could open and close at will, you'd be far better off too. Even better, accordion doors.
Hope that was helpful.
