In the connection of several devices to the same AC distribution board and extension
cables, keeps in mind the maximum current of the power amplifier, and make sure that the
mains connector, as well as the AC distribution board, are of enough current capacity, since
could take place in the mains connector, and in the same AC distribution board a overheat-
ing, with the risk of fire and/or short circuit. The following list shows the maximum current
requirement of the different models of power amplifiers:
MODELS MAXIMUM CURRENT REQUIREMENT
MF8
6A.
MF12
10A.
MF16
14A.
MF24
18A.
Make sure that the power amplifier power switch, is at position 0 (turned off).
Insert the male connector of the three-wire cable into the mains plug.
Turn on the power amplifier power switch. Right now the power amplifier will turn on.
CAUTION:
Make sure that the mains voltage is 230V. 50-60 Hz., as well as their fuse is the
adequate.
INPUT CONNECTION
Each power amplifier's channel incorporates one XLR-3-31 female connector. The
inputs are balanced, with a nominal impedance of 20 K
Ω
(10 K
Ω
unbalanced). On the other
hand, the amplifier according to models has two JACK connectors 1/ 4" (MF8 and MF12) or
two XLR-3-32 males connectors (MF16 and MF24), one per channel (LINK) that allows us to
link the input signal from the power amplifier, to other units. The XLR male connectors and
those of LINK are internally wired in parallel.
The input connections depends on two factors, the first is the type of input signal bal-
anced or unbalanced, and the second the ground configuration of the sound source (floating
or ground-referenced). The next pictures shows some of the different possibilities of connec-
tion, relying on the type of input signal, balanced or unbalanced and according to the
ground configuration of the equipment (floating or ground-referenced).
ALTAiR
PROFESSIONAL POWER AMPLIFIERS MF SERIES
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