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Sound Outputs

The Power Macintosh G3 computer provides one 3.5-mm mini jack for sound output on the back of the enclosure.

The output jack is connected to the sound amplifier; the mini jack is intended for connecting a pair of headphones or amplified external speakers. Inserting a plug into the sound output mini jack disconnects the built-in speaker. The computer has one built-in speaker.

The Burgundy IC provides the stereo sound output to both the internal speakers and the sound output jack.

The sound output jack has the following electrical characteristics:

• output sound signal to noise ratio (SNR) <90 dB unweighted (typical) when sound playback is from system hard disk drive or main memory
• output sound SNR <80 dB unweighted (nominal) when playback is from CD
• overall output sound SNR <90 dB unweighted (typical)