Graham-Patten SoundPals, User Manual

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64 • DMIC-20 SoundPals User's Guide
The figure below illustrates the DMIC-20’s front panel:
D
M
IC
-2
0
D
M
IC
-2
0
AES OUT
1 2 3 4 5 6 7 8
-6
0
-5
0
-4
0
-3
0
1 2 3 4 5 6 7 8
-6
0
-5
0
-4
0
-3
0
SEN SITIVIT Y
-60
-20
-3
0
L R
L EVE L
EX T
RE F
1 2 3 4 6
P WR
5
1) Left Mic Sensitivity — the 8-position DIP switch adjusts left
microphone sensitivity in 5 dB steps (-20 to -60 dBu).
2) Right Mic Sensitivity — the 8-position DIP switch adjusts
right microphone sensitivity in 5 dB steps (-20 to -60 dBu).
3) AES Unbalanced Output — provides AES unbalanced output
via BNC. Output is concurrent with the rear panel balanced
output (XLR) — both can be used simultaneously.
4) AES Reference LED — the EXT REF LED lights when the
sampling frequency is locked to the externally supplied AES
reference signal. The LED is an indication only, not an alarm.
5) Level Indicator LEDs — provides level indication for each
input (calibrated in dB). When properly adjusted, the
following levels are indicated:
• −−
60 dB: signal present
• −−
20 dB: normal digital reference level
• −−
3 dB: approaching clipping
•
0 dB: A/D converter is clipping
6) Power LED — the large green LED below the power jack lights
when power is applied.