PATHDocumentation > Hardware > Power Mac G4 Cube Developer Note

     

Sound System

The Power Mac G4 Cube has the following sound features:

Amplifier and Speakers

The Power Mac G4 Cube comes with a pair of stereo speakers and a separate digital audio amplifier. The connection from the computer to the amplifier is a single cable that carries USB signals and power. Power is provided by the USB ports on the G4 Cube or on an Apple display that uses the Apple display connector (ADC).

The digital amplifier module supplies up to 10 W per channel.

The speakers have a frequency response of 80 Hz to 20 kHz.

Headphone Jack

A headphone jack is located on the digital audio amplifier module. The headphone jack is a stereo mini-jack for connecting a pair of low-impedance headphones. It can also be used to drive a 10K-ohm audio line input.

The recommended minimum impedance is 32 ohms. Headphones with lower impedance can be used, but with some degradation in performance.

Digital Audio

The Power Mac G4 Cube supports third-party digital audio peripherals connected to the USB ports. For information about USB audio class devices, see the references at USB Interface.


© 2000 Apple Computer, Inc. (Last Updated 04 Oct 00)