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Specifications
129
AUDIOGRAM 3 Owner’s Manual
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Block Diagram and Level Diagram
INPUT 1
INPUT 2
MIC A
[–60 to –16dBu]
LINE L
[–34 to +10dBu]
LINE R
[–34 to +10dBu]
MIC B
[–60 to –16dBu]
INST
[–44 to 0dBu]
HA
DR
DR
BA
BA
LPF
LPF
LPF
LPF
Hi-Z
MIC/INST
COMBO
[–6dBu]
[–6dBu]
[–12dBu]
[–6dBu]
[–6dBu]
DC-DC
GR
RE
POWER
PHANTOM
+30dBu
+20dBu
+10dBu
0dBu
–10dBu
–20dBu
–30dBu
–40dBu
–50dBu
–60dBu
+30dBu
+20dBu
+10dBu
0dBu
–10dBu
–20dBu
–30dBu
–40dBu
–50dBu
–60dBu
PHONES [0.5mW @ 40ohms]
STEREO OUT [–2dBu]
Clip Level
Level (MASTER)
[Nominal: –6dB]
ST CH IN LINE Gain: Max [–34dBu]
CH IN MIC Gain: Max [–60dBu]
CH IN MIC Gain: Min [–16dBu]
CH IN INST Gain: Min [0dBu]
CH IN INST Gain: Max [–44dBu]
ST CH IN LINE Gain: Min [+10dBu]
+5V
+48V
–7.5V
+7.5V
DC-DC
DC-DC
[–20dBu]
[–20dBu]
[–2dBu]
LR
RE
GR
L
STEREO OUT
[–2dBu]
PHONES
[0.5mW @ 40ohms]
R
USB
D+
D–
+3.7V
Vbus (+5V)
SSPND
GND
LIN
RIN
LO
RO
OUT1
OUT2
12MHz
SW_IC
IN
EN1
EN2
USB
AUDIO
MUTE
REG
PEAK
SIGNAL
Level
(MASTER)
STEREO L
STEREO R
Level
(Gain)
[10 to 54dB]
PHANTOM (+48V)
[–6dBu]
HA
HA
Level
(Gain)
[6 to 50dB]
SUM
SUM
SUM
SUM
Clip LevelClip Level