An AV receiver combines source switching, audio (and sometimes video ... The TX-RZ30 has one less optical and one less coaxial digital input but provides one extra stereo RCA input.

One end of the lead plugged into the Chromecast, while the other end plugged into an aux output on a powered speaker, soundbar, or AV receiver ... aux and digital optical for audio outputs.

An AV receiver, also known as an AV amplifier, acts as a conduit for all of your sources, taking in every possible video and audio signal and distributing the former to your TV or projector and the ...

and it needs a boost it so it's loud enough for the AV receiver, stereo receiver/integrated amplifier, or powered speakers to amplify. A phono preamp's job is also to level out the audio signal ...