Input/Output - E-Mu 404 Owner's Manual

Input/Output

NOTE
Unbalanced cables provide
6dB less level than
balanced cables. Adjust the
level using the input gain
control. See page 15 for
more information.
16
INPUT/OUTPUT
Mic / Hi-Z / Line
A
1
1. Mic / Hi-Z / Line Inputs
These Neutrik combination jacks can be used either as balanced microphone
inputs, Hi-Z guitar pickup inputs or line level inputs.
XLR Connectors - Use for dynamic or condenser microphones.
(1=gnd, 2=hot, 3=cold)
1/4 inch Jacks - Center opening. Use for electric musical instruments
(i.e. guitar, bass, etc.), or line-level signals. The inputs are balanced, but you
can use either balanced (TRS = tip-ring sleeve) or unbalanced (TS= tip-sleeve)
cables for line-level signals (tip=hot, ring=cold, sleeve=gnd).
2. S/PDIF In/Out
Each jack carries two channels of digital audio data from external devices such
as external A/D-D/A converters or other digital devices with S/PDIF. Both the
coaxial (RCA) jacks and the optical ports carry identical data. Select the
output format you want to use in the E-MU USB 2.0 Control Panel (AES/EBU
or S/PDIF).
3. Headphone Output
The headphone output is designed to drive stereo headphones with 1/4"
stereo plugs. If your headphones have a smaller 1/8" plug, use a commonly
available plug adapter.
Ground Lift Switches
There are "ground lift" switches for both analog inputs located on the bottom
of the unit. These switches can be used to safely stop the hum if a ground loop
occurs in your setup. See
No Input Ground
Grounded Input
The input ground is lifted when the
GND LIFT label.
S/PDIF
B
In
page 48 for more information.
A-GND LIFT
B-GND LIFT
A or B
slide switch is closest to the
Headphone
Out
2 3
E-MU Systems