Not a DJ, speaker advice please

I play music from Amazon Music for the Clubhouse at the RV Park I stay at in Florida. I bluetooth from my phone or laptop to a vintage Marantz receiver, 125 per channel. I use Klipsch KLF30 speakers. I and our Clubhouse are satisfied with the sound with this setup. I would like to pickup 2 powered speakers instead that I could still use my phone or laptop with. My only goal is to avoid carting my collectable equipment around and have as good as or better sound. I'm thinking used as my budget would be $500. Is this feasible within my budget?