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Yes,there are 2 optical outputs.
Sorry, there was a problem. Please try again later.Here is a listing of the back connections: 1. DIGITAL IN OPTICAL/COAXIAL jacks: Input TV or AV component digital audio signals with a digital optical cable or digital coaxial cable. 2. TUNER AM/FM terminal: Connect the supplied antennas. 3. VIDEO IN jacks: Input AV component video signals with an analog video cable. 4. Wireless antenna: Used for Wi-Fi connection or when using a BLUETOOTHenabled device. Adjust the angles according to the connection status. 5. USB port: Connect a USB storage device to play music files. ( p50) You can also supply power (5 V/1 A) to USB devices with a USB cable. 6. ETHERNET port: Connect to the network with a LAN cable. 7. COMPONENT VIDEO IN jacks: Input AV component video signals with a component video cable. (Compatible only with 480i or 576i resolution.) 8. HDMI OUT jacks: Transmit video signals and audio signals with an HDMI cable connected to a monitor such as a TV or projector. 9. HDMI IN jacks: Transmit video signals and audio signals with an HDMI cable connected to an AV component. 10. Power cord (North American, European, Australian and Asian models) AC INLET (Taiwanese models): Connect the supplied power cord. 11. GND terminal: Connect the ground wire of the turntable. 12. AUDIO IN jacks: Input TV or AV component audio signals with an analog audio cable. 13. SPEAKERS terminals: Connect speakers with speaker cables. (North American models support banana plugs.) 14. ZONE 2 LINE OUT jacks: Output audio signals with an analog audio cable connected to a pre-main amplifier in a separate room (ZONE 2). 15. SUBWOOFER PRE OUT jacks: Connect a powered subwoofer with a subwoofer cable. Up to two powered subwoofers can be connected. The same signal is output from each SUBWOOFER PRE OUT jack. This link will take you to the owner's manual download: https://www.se.onkyo.com/downloads/3/3/4/1/8/Manual_TX-NR686_En.pdf
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