The different resistors in order to get input sensibilities between 0 dBu and +8dBu are
shown in the next table:
INPUT SENSIBILITY
RESISTOR (1%)
+1 dBu (0,87 V).
39K2
+2 dBu (0,98 V).
16K9
+3 dBu (1,10 V).
9K09
+4 dBu (1,23 V).
5K76
+5 dBu (1,38 V).
3K57
+6 dBu (1,55 V).
2K05
+7 dBu (1,74 V).
1K02
7. DISTRIBUTED SYSTEMS APPLICATION (PUBLIC ADDRESS)
At the moment the standard of public address, use loudspeakers of 70.7 Volts and 100
Volts with different powers. The professional power amplifiers MF series could work with these
public address systems. In order to use the power amplifiers in distributed systems, it is neces-
sary to choose the voltage (and therefore the power amplifier model) of work and wire the
loudspeakers in parallel with the power amplifier output, always keeping in mind that the sum
of the loudspeaker powers placed in parallel with the power amplifier output should not never
overcome the maximum acceptable power of the amplifier. The next table shows the voltages
and powers with which the different power amplifier models could work:
ALTAiR
PROFESSIONAL POWER AMPLIFIERS MF SERIES
25
Bridge mode Stereo mode
MF 12
-- 1200 W --
MF 16
-- -- --
MF 24
-- -- 2x1200 W
70,7 V 100 V 70,7 V
MODELS
OUTPUT POWER Watts RMS 1KHz, THD+N 0,1%
MF 8
700 W -- --
