Driving outdoor speakers.
Not sure if this is the correct forum for this question but seemed appropriate.
We recently moved into a house. It has a covered pool patio pre-wired for a pair of speakers in the ceiling. The terminal for the speakers is inside the house (banana plug wall plate). Would like to rig something up on the cheap to get some basic stereo out on the patio. The indoor wall plate is nowhere near my home theater av equipment so using any kinda of zone 2 on AVR is not possible. I do have a old Sonos Zoneplayer 80 which I am not using which has RCA and optical outputs. I can probably get it close to the wall plate, but would then need some sorta 2ch amp?.
I will be going really cheap for the speaker themselves (like $50/pair at most) so don't need anything super powerful.
Ideally I would like someway to 'beam' zone2 output from my AVR out there but not sure any of the wireless speaker receiver/transmitter kits would work?. Its probably a good 50+ft from where AVR is to the terminals for the outdoor speakers. Not sure if there are any kinda of bluetooth solutions.
Curious for any suggestions.