Alpine 9825 Owners Manual - Page 15

Connecting to an External Amplifier When an external amplifier is connected and the built-in amplifier is not used, removing power from the built-in amplifier will improve the sound quality. The power to the internal amplifier is turned OFF by the following procedure. 1 Press and hold the F/SETUP button for at least 3 seconds. 2 Press the f or g button to select "PWR." 3 Press the BAND/TEL. button to toggle the mode between PWR ON and PWR OFF. PWR OFF: When activating the speakers, this setting can be performed by connecting between the front and rear pre-amplifier of the unit and the external amplifier. In this setting, nothing is output to the speakers. Amplifier Amplifier Front left Front right Rear left Rear right PWR ON: The speakers are driven by the built-in amplifier. Speakers SPEAKER RIGHT FRONT Front right SPEAKER RIGHT REAR Rear right SPEAKER LEFT REAR Rear left SPEAKER LEFT FRONT Front left NOTE No sound is produced by the system when the power output is set to OFF 4 Press the F/SETUP button to return to normal mode. 13-EN