AudioQuest DragonFly Manuel - Page 6

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Why is "Format" important?

CD's are 44100.0 Hz.

Compressed MP3 and AAC music files and

audio streams are typically encoded at

three different quality levels - 128kbps,

256kbps (iTunes Plus) and 320kbps - and

most often reconstructed as 44100.0 Hz files.

Many music downloads and CDs ripped

as Apple Lossless or FLAC files are

reconstructed to 44100.0 Hz.

If you have higher resolution files, it is

important to choose the correct higher

sample rate in order to maximize the

benefit of those files, and to direct the

information to whichever of DragonFly's

two dedicated "clocks" is optimized for

that sample rate.

Setting up the "Audio MIDI

Setup" so computer audio

plays through DragonFly.

Open the "Applications"

folder, and then the

"Utilities" folder.

Within Utilities, double-click

to open "Audio MIDI Setup. "

Within the "Audio Devices"

panel, click on "AudioQuest

DragonFly."

Use the "Format" drop-down

menu to choose a sample

rate ... most likely 44100.0 Hz;

please read the following

explanation.

Some programs (such as NPR) use

48000.0 Hz. These 24-bit/48000.0 Hz files

can sound amazingly close to higher

sample rate files.

Some "high-res" files use 88200.0 Hz

because it is a multiple of the CD standard

sample rate.

Some "high-res" files use 96000.0 Hz

because it is a multiple of the sample

rates used on DVDs, Blu-rays and in the

computer world.

DragonFly's illuminated dragonfly lights

up in different colors to indicate status or

sample rate:

Red: Standby Green: 44100.0 Hz

Blue: 48000.0 Hz Amber: 88200.0 Hz

Magenta: 96000.0 Hz