10
ENGLISH
NOTES ABOUT CONSTANT VOLTAGE SYSTEMS
• The loudspeaker input voltage (Vd) must correspond to the amplifier output
voltage (Va).
• The sum of nominal power values (Pd x n) of all loudspeakers connected to the
line must not exceed the amplifier power (Pa).
• Make sure all loudspeakers are connected in phase to ensure a correct audio
reproduction.
LOW IMPEDANCE SETTING (16 Ω)
(not for 100 / 70 V lines)
Set the commutator (turn it clockwise by using a
screwdriver) to the 16 Ω position.
NOTES ABOUT LOW IMPEDANCE CONNECTIONS
• The total loudspeaker impedance must not be lower than the amplifier
output impedance.
Note:
a loudspeaker total impedance equal to the amplifier output one
permits to get the maximum deliverable power (but an higher loudspeaker
impedance entails less power).
• The total loudspeaker power shall be adequate for the maximum deliverable
power of the amplifier.
• The loudspeaker line length shall be short (for long distances, it may be
necessary to use cables with large cross-section wires).
278
75
MADE IN ITALY
7.5W
15W
7.5W
100V 70V
3.75W
OFF
16
Ω
60W
30W
15W
30W
7.5W
OFF
16
Ω
MADE IN ITALY
MQ
60W
30W
15W
7.5W
100V 70V
3.75W
15W
30W
