Block Diagram - Biamp SPM412e Operation Manual

L
1
R
L
2
R
STEREO
LINE
INPUTS
1~4 L
3
R
L
4
R
IR3 / low
REMOTE IR2 / high
GND
translator
+24V
Phantom
Power
+10
+
30dB Mic/Line
MIC/LINE
- Pad Preamp
INPUT
▼
Signal
signal present
Present
▼
Mute
mute
Logic

BLOCK DIAGRAM

Σ
Σ
Mute
Σ
Switch
Matrix
Channel Level
Select Control
Logic Logic
1 2 3 4
Trim
Mic
Level
Zone
Level
Mute Mic
Tone
Defeat
Mono/
Stereo
Mic Mic
Treble
& Bass
Σ
Limit
Threshold
Min
SPM412e Block Diagram
10
+
-
▼
+
VCA
-
▼
Mic
Bal
+
VCA
-
▼
Main Level
Reference
Meter
Max
ZONE
OUTPUT
L
MAIN
OUTPUT
R