Models 151A | 181A
This user manual describes the rear panel of model 181A as a reference. Illustrations and features of the
other model are comparable.
CARPET-181A
MAGI
ACTIVE SUBWOOFER
LINE IN R
LINE IN L
OUT R
OUT L
X-OVER SET
X-OVER FREQ
40 Hz
PHASE
POWER
AC 115/230V 50/60Hz
T3.15A/250V
LINE IN R
LEVEL
0
10
LINE IN L
LEVEL
0
10
OUT R
LEVEL
0
10
OUT L
LEVEL
0
10
250 Hz
0°
180°
CLIP
POWER
ON
OFF
1
Signal input LINE IN L/R
Balanced combo inputs (XLR/6.3 mm jack) for
connecting audio units with line level output (e.g.
mixers or preamplifiers).
2
Level control LINE IN L/R
The volume of both line inputs can be separately
adjusted.
3
Feed-through output OUT L/R
Balanced XLR jacks, connected in parallel to the
inputs, to connect another device, e.g. a further
active speaker system.
4
Output level control OUT L/R
The volume of the feed-through output is, as with
the line input, separately adjustable.
5
Crossover frequency control X-OVER FREQ
For adjusting the upper crossover frequency
(40-250 Hz) of the low-pass filter.
6
Control PHASE
Allows precise phase adjustment from 0° to 180°
when multiple speakers are operated in parallel.
7
CLIP indicator
Lights red in case of overload. Reduce the volume
with the master control until the LED does not
light anymore, or only at signal peaks.
8
Voltage selector switch
9
POWER indicator
10 Power switch
Turns the device on and off.
11 Fuse
Only replace the fuse when the device is
disconnected from mains. Only use fuses of the
same rating and power. The correct fuse value is
specified on the rear panel.
12 Power supply
Used to plug in the supplied power cord.
18