Specifications

Audio Line-in

The Power Mac G5 has a stereo audio line-in jack on the back panel. The audio inputs are designed to accept

high-level audio signals: 2 Vrms or +8 .2 dbu, which is the standard output level from CD and DVD players. The

output level of some consumer audio devices is lower, often 0.316 Vrms or –10 dbV. Sound recordings made

on the Power Mac G5 with such low-level devices have more noise than those made with high-level devices.

The user may obtain better results by connecting an amplifier between the low-level device and the computer’s

audio input jack.

The audio input jack is a 3.5 mm miniature phone jack with the signals connected as follows:

Left-channel audioTip

Right-channel audioRing

Audio groundSleeve

Based on a 1 kHz, 2VRMS sine wave input, 24-bit 44.1 kHz input format, 0 db input gain and no weighting, the

line input has the following electrical characteristics :

●

maximum input voltage: 2 Vrms (+8.2 dBu)

●

input impedance: > 47 kilohms

●

bits per sample: 16-bit or 24-bit

●

channel separation: greater than 75 dB

●

frequency response: 20 Hz to 20 kHz, +0.5 dB/–3.0 dB

●

THD+N distortion: below –78 dB (no weighting)

Audio Line-out

The Power Mac G5 has a stereo output jack on the back of the enclosure. The audio output jack is suitable for

connecting amplified external speakers or other high input impedance (> 1K ohms) audio equipment.

The audio output jack is a 3.5 mm miniature phone jack with the signals connected as follows:

Left-channel audioTip

Right-channel audioRing

Audio groundSleeve

Input and Output Devices

Audio