Sony STR-DN1060 Parts And Controls page 118

Speakers
Speaker cable (not supplied)
Note
When using this Zone 2 connection, you need to set up the SPEAKERS SURROUND
BACK/BI-AMP/FRONT HIGH/FRONT B/ZONE 2 terminals.
Only audio signals from [USB], [Bluetooth] (while in BLUETOOTH RX mode only), [Home
Network], [Music Services], [FM TUNER] and audio signals input from AUDIO IN jacks
are output to the Zone 2 speakers.
External digital input from OPTICAL IN, COAXIAL IN, HDMI IN jacks and Screen mirroring
cannot be output to Zone 2.
Connecting the speakers in Zone 3
Speakers
Speaker cable (not supplied)