Into sound? Like, really into sound? You choose how you want to turn it up. Nexus Q has a state of the art, audiophile-grade amplifier built in so you can hook your speakers right up, or use an optical or HDMI cable to connect Nexus Q to your AV receiver or HDTV. Once you’re playing, you can control the volume from your phone or tablet, or simply by turning the top half of Nexus Q. Just touch the top LED to mute the sound completely.