The SRS Audio Sandbox is the audio enhancement software to render surround and stereo output for all sound on your PC.
It features: sleek interface design with energized light pulses, surround sound-even from 2 speakers, using SRS Labs audio enhancement technology. Enjoy deep & rich bass-even from smaller speakers. Choose from many cool presets for all your music, videos, and games. The program includes custom settings for 2 or more speakers, or headphones and compact mini mode setting to give you more desktop space.

Version 1.9.0.4 may include unspecified updates, enhancements, or bug fixes.

What do you need to know about free software?