Cambridge Audio DacMagic Plus User Manual download pdf (Page 22)

Advanced USB audio

The DacMagic Plus is both USB 2.0 (Hi-Speed) and USB 1.1 (Full-speed) USB port compatible.

It will also work with the new USB 3.0 ports where the PC will simply treat the DacMagic Plus as if it

were a USB 2.0 or 1.1 device.

The DacMagic Plus also supports two USB Audio protocols (not the same as the port types

themselves) USB Audio 1.0 (which works over USB 1.1 ports and supports up to 24-bit/96kHz) or

USB Audio 2.0 (which requires a USB 2.0 port and can support up to 24-bit/192kHz).

The default conguration is USB 1.1 and USB Audio 1.0 which works with nearly all common

operating systems and computer types without drivers and supports up to 24-bit/96kHz audio,

simply plug in and play.

In this conguration the DacMagic Plus is able to work at up to 24-bit/96kHz by declaring to your

computer that it can handle any sample rate from 32kHz to 96kHz.

However in some Windows/Mac operating system variants the operating system itself may restrict or

x the output sample rate or re-sample the audio.

See our online guide at www.cambridge-audio.com/DacMagicPlusSupport on USB Audio for more

details on this. With careful choice of playback software and settings many pitfalls can be avoided.

In particular our free Windows USB Audio 2.0 driver (available from our website) supports up to

24-bit/192kHz audio and WASPI Exclusive or ASIO modes that can give enhanced performance.

A brief explanation of your choices is below:

Switching between USB Class 1 and USB Class 2 operation

Your DacMagic Plus will come set to driverless USB Audio Class 1.0 by default, but it can be

congured to run in either USB Class Audio 1.0 or 2.0 mode. To change USB Class, press in the

‘Filter/ Phase’ button during power up. One of the digital input source LEDs will illuminate to indicate

current USB setting: Digital 1 represents USB Audio Class 1.0, likewise Digital 2 is USB Audio Class

2.0. USB Class is selected by turning the Volume knob, once set simply press the Volume knob and

DacMagic Plus will restart in your chosen mode.

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Cambridge Audio DacMagic Plus User Manual Page 22