All operating elements and connections can be
found on the fold-out page 3.
1
Operating Elements and
Connections
1
Control FREQUENCY HIGH CUT to adjust the
upper cut-off frequency for the subwoofer sys-
tem
2
Control GAIN for the volume of the subwoofer
system
3
Stereo input via RCA jacks
4
Mono input via XLR jack (bal.)
5
Output jacks for connection of an amplifier for
the satellite speakers
6
Indicating LEDs
ON = power indication
CLIP = overload indication
7
POWER switch
8
Mains jack for connection to a socket (230 V~ /
50 Hz) via the supplied mains cable
9
Support for the mains fuse
Only replace a blown fuse by one of the same
type.
10
Heat sink for heat dissipation, must not be cov-
ered
2
Safety Notes
The unit corresponds to all required directives of
the EU and is therefore marked with
.
It is essential to observe the following items:
G
The unit is suitable for indoor use only. Protect it
against dripping water and splash water, high air
humidity, and heat (admissible ambient temper-
ature range 0 – 40 °C).
G
Do not place any vessels filled with liquid, e. g.
drinking glasses, on the unit.
G
The heat generated in the speaker cabinet is dis-
sipated through the cooling fins (10). Therefore,
do not cover them. Never place the cabinet
directly on a wall; keep a corresponding dis-
tance.
G
Do not set the unit into operation, and immedi-
ately disconnect the mains plug from the mains
socket if
1. there is visible damage to the unit or to the
mains cable,
2. a defect might have occurred after a drop or
similar accident,
3. malfunctions occur.
The unit must in any case be repaired by skilled
personnel.
G
Never pull the mains cable to disconnect the
mains plug from the mains socket, always seize
the plug.
G
For cleaning only use a dry, soft cloth, never use
chemicals or water.
G
No guarantee claims for the unit and no liability
for any resulting personal damage or material
damage will be accepted if the unit is used for
other purposes than originally intended, if it is not
correctly connected or operated, or not repaired
in an expert way.
3
Applications
The active subwoofer system PSUB-115AK is ide-
ally suited for bass support of full range speakers or
for bass reproduction in combination with satellite
speakers. The internal amplifier delivers an rms
power of 300 W (500 W
MAX
) to the 38 cm bass
speaker.
4
Setting-up and Connection
of the Subwoofer Cabinet
Prior to the connection or changing existing con-
nections, switch off the subwoofer system and the
units to be connected.
1) Place the speaker cabinet on a solid ground and
direct it towards the audience. As an alternative,
the PSUB-115AK can be placed onto a standard
speaker stand of 35 mm tube diameter (e. g.
from the PAST series from “img Stage Line”) via
the stand sleeve in the lower side.
If a microphone is used, do not direct the
speaker system to the microphone and keep a
sufficient distance to the microphone as other-
wise an acoustic feedback may occur.
2) As a signal source, connect an audio unit with
line output (e. g. mixer, preamplifier) to one of
the two inputs LINE INPUT:
a stereo unit to the RCA jacks (3) or
a mono unit to the XLR jack (4).
If the unit is to be put out of operation
definitively, take it to a local recycling plant
for a disposal which is not harmful to the
environment.
WARNING
The unit is supplied with hazardous
mains voltage. Leave servicing to
skilled personnel only! Inexpert han-
dling or modification of the unit may
cause an electric shock hazard.
6
GB
