Dell Alienware M17x (Mid 2009) - Manual (Page 22)

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CHAPTER 3: CONNECTING DEVICES
Two types of audio connectors:
1 2
1 stereo jack - Your headpone
jack should have this type of
connector
2 mono jack - Your microphone
should have this type of
connector
Connecting External Speakers
Your Alienware notebook has three integrated audio out connectors and one
audio in connector. The audio out connectors deliver quality sound and support
5.1 surround audio. You can connect the audio input connector from a home stereo
or speaker system for a heightened gaming and media experience.
1 2 3 4
1 front speakers (left and right)
Audio Out connector/headphone
jack (Green)
3 rear surround (left and right)
Audio Out connector (Black)
2 center speaker and subwoofer
Audio Out connector/headphone
jack (Orange)
4 Audio In connector/
microphone jack