DFX Audio Enhancer - Formerly known as DFX Audio Enhancer, FxSound Enhancer instantly boosts the sound quality of the music on your PC.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
FxSound - Clearer Sound for Your PC. The new FxSound boosts your sound quality, volume, clarity and bass.
AIMP - AIMP : Free Audio Player : Официальный сайт программы
Boom 3D - Audio enhancer with 3D surround sound
foobar2000 - An advanced freeware audio player for the Windows platform.