Rate my system/advise

You do not need to spend the same amount on the gear as the speakers. Get some warm sounding gear for the B&W. My warmest sounding gear is the new KRELL XD line. Which likely would sound killer with the Audio Research and B&W.

I own the model 1 lower than this model linked below. I wanted to get the one on the link but the one I got was cheaper with less power, KRELL 175XD.

Krell Duo 300 XD Stereo Amplifier Dealer Ad - US Audio Mart (MSRP is now $14K)

I have a NAD M22 V2 on the way to my house next week. When I demoed it a few years ago I found it a little warm, not the utmost in detail, but not bad. This is for some headphones.

$49 well spent to get a laser measure for set up.  Not just distance to front baffle from listening spot, also use it on sides of speakers to set toe-in and on top to set any tilt.  Way more significant than I'd have ever guessed until I fine tuned my position and geometry.  Its when you notice your speakers actually disappear. 

Too bad you're not loaded up with a bunch of stuff to sell.  LOL.  So moving forward.  Have you got the speakers positioned.  Out in front of furniture etc.  Subs would help.  Takes load off amps. Not sure if a Parasound A21+ would work warm sound.  Not high priced.  Older model is less.  But yeah. If money is tight first you have to have time listening and you will have plenty of time to figure this out.  Good luck.  You should be able to make this sound good for now.

Santabarbara, thanks for the info and providing the link. I'll look more into Krell. I was looking into some Pass Labs amps or to save money, buying an older pair of ARC Ref 210 or VTM200. Do you think these older models will hold up, or should I really look for newer? 

Akgwhiz and daledeee, thanks for the advice. I'll definitely wait and take time for measurements and all that before purchasing any items for room treatment.  

This sounds a lot like putting the cart before the horse. Set it up, listen to what you have now and go from there. Right now you are driving blind. With the cart in front of your horse. Hard to get anywhere that way.