Audio Pro Rack-mountable 8 x 8 USB 2.0 Interface with MX Core DSP Technology 8R 사용자 설명서

User Guide

5

Fast Track Ultra 8R

15. 

Power Input ((9V DC 3.5A - 4A) – Connect the included power supply to this jack.

NOTE: Fast Track Ultra 8R is designed to work with 9V DC power supplies with  
a 3.5 - 4A rating. If you need to purchase an additional power supply for your  
Fast Track Ultra 8R, be sure to buy one with the correct rating and polarity. Replacement 
power supplies are available at the M-Audio webstore.

16. 

 USB 2.0) – Connect a standard USB cable to this port, connecting the other end to 

your host computer.

17. 

 Lock Port (   ) – This connector is compatible with Kensington

®

 security cables to protect your 

device from theft.

18. 

 MIDI and S/PDIF Connector (MIDI S/PDIF) – The accompanying breakout cable connecting to this  
multi-pin jack provides MIDI input and output on 5-pin DIN connectors, and S/PDIF input and output on coaxial
RCA connectors. 

 

   

• When the Sync Source drop-down menu is set to “External” in the Control Panel, input channels 7 and 8

will receive their signal from the S/PDIF input instead of analog inputs 7/8.

 

• The S/PDIF output signal is identical to the output of Line Outputs 7/8.

 

• The S/PDIF output will also support pass-through of AC-3 or DTS encoded surround formats.

19. 

 Line Outputs – These eight balanced/unbalanced 1/4” (TRS) jacks provide eight analog outputs. The level
of output pair 1/2 is controlled by the front-panel master volume knob

10

. Signal present at outputs 7 and 8 is 

duplicated at the S/PDIF outputs.

20. 

 Mic/Line Inputs – These eight combo jacks provide eight 
analog inputs, and can accommodate microphone or  
line-level sources via XLR or 1/4” TRS or TS connectors.
The microphone (XLR) inputs route signals to the interface’s
preamplifiers while the line-level (1/4”) jacks bypass the
preamplifiers.

The input source for channels 1 and 2 can be selected via
the front-panel Mic/Line – Instrument switches 

2

 between 

Mic/Line inputs 

20

 or the front-panel Instrument inputs 

1

.

  Selecting “External” from the Sync Source drop-down menu

in the control panel will activate the S/PDIF input as the 
signal source for input channels 7 and 8. Mic/Line inputs  
7 and 8 will be disabled in this configuration. 

21. 

 Inserts – Insert jacks allow you to add analog outboard 
effects (compressors, limiters, etc.) into the signal path of
the first two channels of your Fast Track Ultra 8R.  Outboard 
effects are “inserted” between the preamp and the A/D converter.

These 1/4” TRS jacks are only active when a a special “insert” cable is connected to these jacks (see the box

entitled “About Insert Cables” to learn more about these cables). If no insert cable is connected, these jacks do
not affect the signal path.