"Wife Friendly" full range speakers

Hoping I could get some recommendations on a "Wife Friendly" on a full range floor standing speaker that doesn't need to be placed an excessive distance from the wall. My system includes:

McIntosh 2102 tube amp (100w/ch)
McIntosh 2200 tube pre
Naim CD5
Alon II (now Nola)
Black Orpheus Bi-wire
Nordost Red Dawn (CD to pre)
Audience AU24 (pre to amp)
Foundation Research LC-1 with Naim
TG Audio HSR II with McIntosh

My room is 12 x 12 and has a large opening at the back and one side. Alon II's are located about 20" from the back wall and 36" from the sides. I enjoy a variety of music types - especially quality female vocals (Alison Krauss, Ella Fitzgerald) and instrumental piano and guitar. I'm not a bass freak, but would like a decent bass response - no less bass response than with the Alons IIs.

A key element here is the speakers cannot be placed more than 2 feet from the back wall. My listening room is also my family's music room and is incorporated into our home's main level. My lovely wife will not allow the speakers to come out any further into the room!

After having a solid state system (Threshold) for the past 12 years, I've really enjoyed the change to tubes with instruments and vocals. Please give your thoughts/opinions on a speaker upgrade that mates will with tubes and doesn't need to be placed too far from the back wall without a tremendous amount of sound degredation.

Thanks!