5
ENGLISH
SET THE POWER FOR 100 / 70 V
CONSTANT VOLTAGE LINES
Set the power (by using a screwdriver) according to the loudspeaker line
voltage (100 o 70 V):
60 W – 30 W – 15 W – 7.5 W [100 V]
30 W – 15 W – 7.5 W – 3.75 W [ 70 V]
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.
Pa = Amplifier power
Pd = Speaker power
n = Number of speakers
Vd = Speaker input voltage
Va = Amplifier output voltage
Amplifier
Pa > Pd x n
Va
Vd = Va
+
–
-
+
-
+
Vd = Va
-
+
Vd = Va
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
