Using Internal And External Speakers; Internal Speakers; External Speakers - Compaq Armada 7800 Reference Manual

Using Internal and External Speakers

Internal Speakers

The internal stereo speakers are disabled when external speakers
or headphones are connected to the stereo speaker/headphone jack

External Speakers

Provide more separation for the left and right audio channels.
Produce more volume with amplified speakers.
Produce higher quality sound.
10-4 Using Audio Features