Hi there! Thanks for using it!
There is a part on the help file as I remember. Or at least there is this one for sure on the Itch Io page:
"First of all, you can choose if you want to play different sounds for equipping in the plugin parameters.
If you choose, you will see a list that will match the equipment according to the Equipment Types tab on the "Type" item on the database."
Now you just need to select the sounds you want to play for each piece of equip type(According to the database order they are created). And also set to TRUE the plugin parameters for enable equip sounds.
Can you tell me what exactly you did not understand from there?
And maybe I can update this plugin to let each equip type have it's own sound, like the items.