E-Mu 404 Owner's Manual page 15

Main Panel Controls
7. Soft Limit LEDs
The Soft Limit LEDs indicate that the signal level is being soft limited. When
enabled in the E-MU USB 2.0 Audio Control Panel, the analog soft limiters
begin to gently turn down the gain whenever the signal level goes above -12
dBFS. The soft limiters allow you to run a hotter signal without fear of
clipping.
8. Signal Level & Clip Indicators
The LED signal level indicators show the signal level for both analog inputs.
The red clip indicators momentarily remain on whenever your input level
exceeds 0 dBFS. With a proper signal level, the yellow -3dB LED will come on
occasionally, but the red clip LED should never light.
9. Input Level Gain Controls
The preamp level controls set the input gain from 0dB
to +65dB. The wide mark indicates the 0dB/unity
setting when using unbalanced input cables. The 0dB
mark indicates unity gain when using balanced input
cables.
10. 48V On Switch & LED
This switch enables +48 Volts to both XLR inputs for powering microphones
that require phantom power. The red LED indicates that phantom power is
on.
11. S/PDIF Mode
Coaxial or Optical. This button selects between coaxial cable or optical inputs
for the S/PDIF digital interface. Both outputs are always active.
12. Headphone Level Control
This knob controls the volume of the Headphone output.
0404 USB 2.0 Owner's Manual
0dB/Unity
(Unbalanced)
0
0dB/Unity +65
(Balanced)
WARNING!
Some microphones cannot
tolerate phantom power
and may be damaged.
Check your microphone' s
specifications and require-
ments before using
phantom power.
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