Mackie U.420 Owner's Manual download pdf (Page 13)

Owner’s Manual

8. DC Input

This DC input connector is used to supply power to

the mixer. Connect the supplied external power supply

here, and plug the other end of the power supply into

the AC mains. The power LED [28] will joyfully illumi-

nate, indicating that the mixer is powered on, and ready

for action.

The universal external power supply that comes with

your mixer can accept any AC voltage from 100 VAC to

240 VAC.

9. FireWire Connection

FireWire (IEEE 1394) is a high-speed serial I/O inter-

face for connecting digital devices. The mixer has one

FireWire connector for transferring digital audio to and

from your computer.

The FireWire interface provides two audio outputs to

your computer:

• Mainmixoutput,leftandright.Theseoutput

signals are independent of any adjustments

made to the main level control [36]. This al-

lows you to easily record your live performance

directly to your laptop.

• TheFireWireloopoutswitch[34]letsyou

choose if you want the FireWire input to be

connected to the FireWire output for recording.

See page 19 for more details of this switch.

The FireWire interface also lets you use your com-

puter to playback two channels into the mixer:

• Leftandrightsignalsfromyourcomputerare

added to the main mix. The FW in control [33]

allows you to adjust the level of the incoming

audio being added to the main mix.

See Appendix D on page 25 for more FireWire details,

and the block diagram on page 24.

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Mackie U.420 Owner's Manual Page 13