anyone have tritton ax 720

[geraldrubalcava]

because im looking for the right power voltage and amp.  i recently got the optical to headphone dolby reviver. no headphones unfortunately. (i bough the reviver for 2 bucks lol). and i have a fully working "turtle beach px21" which were 4 bucks just because one side of the headphone was lose lol. so ima splice them together. but i need to know the power voltage i need to power the optical reviver.

thanks if anyone can give me this info! xD