I am looking at audio setup options for patio and was curious if they make multi-channel (4+) RF amplifiers that transmit wirelessly? In other words, i would like to install an amp behind wall mounted TV and hook up 4 or more speakers to it, wirelessly. What are my options? Thanks for any help!
You can't send the output of an amp without wires. You can connect a transmitter to the audio output of the TV and use self powered speakers. You could use bluetooth but most can't pair with more than 2 speakers. JBL speakers can with the use of their Connect+ app.
You could use a Sonos or Denon Heos soundbar with the TV. Then you could use Sonos or Heos speakers or amps and passive speakers.