Mackie HD 1801 User Manual
LEVEL
+
6d
B
6d
B
-
Input
XLRs
High P
ass
Output XLRs
F
ull R
ange
Output XLRs
Crossove
r
Signal /
Limit LED
Thermal
LED
Polarity
In
ve
rt
LED
LPF
100 Hz
O
verex
cursion
Pr
otec
tion
HPF
40 Hz
Thermal
Monitoring
A
m
p
Limiter
Polarity
In
ve
rt
Thermal
Mute
Normal
In
ve
rt
ed
Gain
HD
Subwoof
er
Pr
ocessing
Crossove
r
HPF
100 Hz
Crossove
r
HPF
100 Hz
19
Owner’s Manual
Owner’
s Manual
HD1801 Block Diagram