Difficult/Impossible to find the official website so you have to rely on third-party pages.
Sometimes require a patch to work on Windows 10 depending on the version you download.Other features like Ozone+, reverberation, playbackAGC, Cure-tech+, eXtra-Loud, Pure-Bass+.Viper Clarity and XHiFi provide treble quality that is above expectations.Haas effect provides differential sound along with VHS+ for surround effect.Can raise the volume above max while providing exceptional output from speakers, earphones, headphones, HiFi System.One thing Viper4Windows dominates all other tools in this list is the number of features V4W provides and how effective they are. I think Viper4Windows (V4W) is the only free audio enhancement software that can go neck to neck with the Equalizer APO. Not much audio modification in extra to the equalizer.Might be a bit tricky to use for complete beginners.One-click reset button in case you want to start the adjustment from scratch.