Advertisement
4. CONNECTIONS
WARNING: To prevent the risk of electric shock, do not
connect the loudspeaker or change the power selector taps
with the amplifier switched on.
1. Connect your amplifier output to the terminals on the
loudspeaker. The loudspeaker negative terminal connects
to the negative amplifier output, the loudspeaker positive
terminal connects to the positive amplifier output.
2. Use the tables in the specification section
to select the power rating for the voltage
line you are using (70 V or 100 V). Move the
positive line to transformer terminals 1, 2,
3 or 4, depending on your required power
rating. Leave the negative on the COM
terminal (common).
3. When the connections are securely made, connect
the other spring clip to the bracket, and press
the loudspeaker upwards until it is flush with the
ceiling.
Precautions
• Before using the loudspeaker, carefully check that all the connections have been
made correctly to make sure there are no accidental short circuits that could cause
electrical sparks.
• Check if your power amplifier's constant output voltage is 70 V or 100 V, and find the
rated power output.
• The sum of the operating power values of all the loudspeakers connected to the
audio line must not exceed 80 % of the amplifier's output power.
• Verify that the connections to all of your loudspeakers are made correctly "in phase."
When different loudspeakers reproduce the same frequencies but with phase
differences, there may be sound cancellation. Loudspeakers are often situated in
adjacent positions and the sound waves interact with each other. If a loudspeaker is
connected incorrectly; i.e., the polarity of the audio line conductors is inverted, the
audio signals are transmitted with differences in phase and correct reproduction is
therefore jeopardized. Most notably, the bass response may suffer.
4
3
2
1
+
GND
4
3
2
1
GND
+
GND
5
CIS6 –
Advertisement
