PC Equalizer GUI use Equalizer APO. There are many free equalizers, but there are just a GUI for Equalizer APO. Just google APO driver. I don't post the link here. There are many equalizer selections. I recommed Viper4Windows. Viper4Windows win10 patcher will not 100% work on Win10. You can find very high quality preset and fixed V4W installer (100% work on win10) in that page.