While not a dedicated 2/ch system, I always listen to music in 2.2
Not the most current pic, but you get the idea.
Listening room is 12 x 17 x 8 with 2 openings. Equipment is set up on the 12' wall with ideal listening position on the opposite end of the room. All walls & corners are treated with 3 OC703 panels that address comb filtering and 1st reflection points.
Primary sources are HD Satellite DVR, Blu-Ray, and a Yamaha CD Changer. Digital media sourced from network server through Samsung PCS Manager. All feeding a Yamaha RX-V1900.
Mains are Martin Logan SL3's with updated panels and woofers powered by an Emotiva XPA-2.
Center channel is a Definitive Technology C/L/R2002 and surrounds are Mirage OM-R2's. Both powered by an Emotiva XPA-3.
Subwoofers are dual Epik Empires and a Tuba HT which is primarily used for movies extending low-end support in unison with the Empires.
Video is fed to a Samsung UNC558000.
Power feed care of (2) APC H15 Power conditioners.
Amps are run at 230 volts on a dedicated 30 amp line.
User interface with the help of a Harmony 900 remote.