Boom 3D - Audio enhancer with 3D surround sound
Volume2 - Volume2 is an advanced Windows audio mixer, a complete replacement for the standard Volume Control.
Equalizer APO - A system-wide equalizer for Windows 7 / 8 / 8.1 / 10 with channel remapping/copying capabilities
Sound Control - App-specific volume control
FxSound - Clearer Sound for Your PC. The new FxSound boosts your sound quality, volume, clarity and bass.
Power mixer - Power Mixer is a complete Windows volume control replacement.