Wilson Alexia 20x15 Room

Yes,
Excessive room absorption takes the life and natural vibrancy of music away. The resulting sound is dead and uninvolving.I'd give JohnnyR's suggestion a shot.

John,

All my cables are AQ Sky and I upgraded to AQ speaker cables as you suggested . I have AQ Meteor in the system now ( I have to update my system details on audiogon )

I have absorption on first reflection points and front wall and diffusion on back wall. Might me I need to change that. I bought some core Audio diffusor for back wall.

I would try taking the absorption out in front- usually that's only for dipoles. I can't imagine absorption at first reflections being negative.

Veerapaneni
Take the core diffusors units and put them at the first reflecting points on the side walls.
To find the FRP place a mirror on the right side wall, sit down in your listening chair,
when you see the right speaker,
that's the place for the Diffusor.
next do the same for the left.
When you hear the improvement take it up a step further by diffusing the left speakers reflection off the right wall find this by placing the mirror on the right wall, when you see the left speaker that's where you place the next diffusor and repeat for the other side.
Keithr You got it half right, I see you ((cant imagine absorption harming)) Lets see what happens when he does diffuse Best, JohnnyR

I took a look at your room. While it may create other problems, putting your speakers on the long wall will give you a bigger soundstage. You're lucky in that the Vandy's bass can be adjusted to make a long wall placement work.