TOP.S 15A
2009
5
3. MOUNTING AND PLACEMENT
For a proper installation of the acoustic cabinet
systems, it is strongly recommended to carefully
read the following advices.
3.1. Placement
The "Full Range" cabinets should be located in a
high position (between two or three meters),
slightly inclined to the audience. If the
loudspeakers are located too low, the listeners
at the end of the room will not receive enough
sound pressure level.
They may be located together, in cluster form,
one next to the other, taking advantage of their
trapezoidal shape.
4. TROUBLESHOOTING
No power
•
Make sure that the cabinet is plug in.
•
The Fuse is blown. Replace the fuse on fuse
holder with one of the same type. If it blows
again, take the unit to a service centre.
No sound
•
Check that the mixer or sound source is
sending signal to the unit.
•
Make sure that the VOLUME potentiometer is
well-positioned.
•
Check that the cable from the sound source to
the units is connected correctly. Replace the
cable if defective.
•
Make sure the output volume (gain) control on
the mixing console is turned up sufficiently to
drive the inputs of the speakers.
•
Make sure the mixer does not have a Mute on.
Distorted sound
•
The system is overloaded and has reached
maximum power. Turn down the mixer's output
or the channel's gain.
Poor bass performance
•
Check the polarity of the connections between
the mixer and the cabinets. You may have the
positive and negative connections reversed at
one end of the cable, causing a loudspeaker to
be out-of-phase.
Noise and Hum
•
Make sure all connections to the active unit are
in good conditions.
•
Avoid the signal cables to be routed near AC
cables, power transformers, or EMI-inducing
devices.
•
Check if there is any light dimmer on the same
AC circuit as the cabinet. Connect the sound
system to a different phase than the lights.
