Auto standby enabled. From the manual:
AUTO STANDBY
Auto Standby feature is an integral feature of the C 326BEE that conforms to European ecodesign regulations. When Auto Standby is enabled, the C 326BEE will automatically go to standby mode if there is no active input at current source or no user interface interaction within 30 minutes.
Auto Standby can be enabled or disabled by the following button combinations and Standby LED indicator response. Execute below steps while the C 326BEE is at operating mode.
3 SOFT CLIPPING INDICATOR: The blue SOFT CLIPPING LED shows that the SOFT CLIPPING mode is engaged. Refer also to the item below about SOFT CLIPPING at the IDENTIFICATION OF CONTROLS – REAR PANEL.
4 REMOTE SENSOR: Point the SR 8 remote control at the remote
sensor and press the buttons. Do not expose the remote sensor of the C 326BEE to a strong light source such as direct sunlight or illumination. If you do so, you may not be able to operate the C 326BEE with the remote control.
Distance: About 23ft (7m) from the front of the remote sensor. Angle: About 30o in each direction of the front of the remote sensor.
5 PHONES: A 1/4” stereo jack socket is supplied for headphone listening and will work with conventional headphones of any impedance. Inserting a headphone jack into this socket automatically switches off the loudspeakers. The volume, tone and balance controls are operative for headphone listening. Use a suitable adapter to connect headphones with other types of sockets, such as 3.5mm “personal stereo” jack plugs.
Make certain that the volume control is turned to minimum (fully counter-clockwise) before connecting or disconnecting headphones. Listening at high levels can damage your hearing.
6 MP SOCKET: Using a 3.5mm stereo plug, connect into this socket the audio output of a Media Player.
Press and hold [AUX] button and then press Standby button. Observe
the number of times the Standby LED flashes.
• Auto Standby enabled : Standby LED flashes once. NOTE
• Auto Standby disabled : Standby LED flashes twic