Yes, the Echo Dot has audio output. You can use the 3.5mm line out analog jack to connect the Echo Dot to your audio receiver. To do this, you will need a 3.5mm to RCA audio adapter. Once you have the adapter, you can plug it into any available RCA input on your receiver, such as DVD, Tape, AUX, or Audio1. This allows you to connect the Echo Dot to your surround sound system and enjoy audio through your speakers.