I have a similar setup in my office (12'x8')

YAQIN MC-10T -- 550$CA so around 10$USD :-)
Emotiva XDA-2
Axiom M22
10" subwoofer

PC & macbookpro feed a digital signal to the DAC

[img]https://drive.google.com/file/d/0B7bOQfAB_PACcHBLV1dFU0tjclU/view?usp=sharing[/img]

[img]https://drive.google.com/file/d/0B7bOQfAB_PACQ3VPbjI5SHUtZEk/view?usp=sharing[/img]