In Magisk, look for the module:
.Viper4Android FX Legacy created by VIPER520 ZhuHang, Ahrion, Zackptg5.
Install it selecting the options you want, but at the end of installation do not reboot the phone.
Go back and find the module:
.Audio Modification Library created by zackptg5, ahrion.
Install it, and reboot at the end.