we just bought the amazon fire tv. How do we connect our Bose 321 speakers to it?
For the best sound, locate the optical “audio out” port on the tv connect, to the 321 optical “audio in” port using an optical cable.
Connect your Amazon Fire to an HDMI input port on the TV.
This method allows you to select more than just the Amazon Fire as your source, you may have a cable tuner or BD/DVD connected to your TV, while giving you Dolby Digital sound output from all your connected devices.