Power Macintosh G3 (Blue and White): Audio Input and Output Specifications

This article provides the audio input and output specifications for the Power Macintosh G3 (Blue and White) as taken from the About Your Macintosh section of the Mac OS Help system.

Audio input and output specifications

Typical audio specifications

Your computer includes audio input and output capabilities featuring 16-bit stereo sound with audio sampling rates of 44.1 kilohertz (kHz).

Sound in using the sound input port

• Input impedance: greater than 20 kilohms
• Maximum input voltage without distortion: 2.5 volts (V) peak-to-peak
• Line-level microphone voltage range: 28 V to 2.1 V peak-to-peak

Sound out using the sound output port

• Output level: 2.5 V peak-to-peak maximum

Noise, distortion, and bandwidth

Noise:

Input sound signal-to-noise ratio (SNR)

• Sound input SNR less than 90 decibels (dB) unweighted (typical) for recording to system disk or system main memory

Output sound signal-to-noise ratio (SNR)

• Sound output SNR less than 90 dB unweighted (typical) when sound playback is from hard disk drive or main memory
• Playing sound output from CD SNR less than 80 dB unweighted (nominal)

Distortion:

• Total harmonic distortion: 0.05 percent

Bandwidth:

• 20 Hz to 20 kHz with less than 1 dB variation in amplitude