I don't know what "spring terminal outputs" are but if there is an adapter for it then Radio Shack probably has it ...if possible take your receiver to Radio Shack and visually check out the possibilities...WARNING: Don't expect the sales person to automatically give you the right part (even if they confindently choose something for you) but figure on having to use a lot of your own logic to get the right part and keep up with your packaging and receipt, in case you have to return the part (I had a situation where I was trying to convert stereo to mono on a portable CD Player, to play through my crummy car cassette player, I took the player and connectors with me and explained to the sale guy what I was trying to do and the guy gave me a mono to stereo, the exact opposite of what I needed)