AMC MMA Series 사용자 설명서 - 페이지 10
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Connections
INPUTS: Connect microphones or balanced line-level sources to mixer-amplifier balanced input connectors.
Set gain to desired level. Connect unbalanced line-level signals to RCA input connectors.
OUTPUT: Maintain proper polarity on output connectors.
Each output channel may be connected via Phoenix connectors.
Use terminals marked
to
and COM for constant - voltage loudspeaker loads.
Connect the COM terminal to speaker negative (-) lead; connect one of the other terminals to
speaker positive (+) lead.
Impedance and output voltages ratios
MMA 60
4Ω / 15.5V
MMA 120
4Ω / 22V
MMA 240
4Ω / 31V
NOTE : The total speaker system impedances indicated in the table represent.
Different voltages and impedance could be selected to Hi-Z outputs by changing wires connected to T10, T11,
T12 and T13 terminals.
By default unit is set to provide 100V lines. Different output line modes could be set by plugging appropriate
color wires to particular terminals. Possible output modes are listed in a wire to terminal table.
Mode\Terminals
100V
70V
25V
(GND) and
for a 4
10Ω / 25V
5.2Ω / 25V
2.6Ω / 25V
T10
T11
RED wire
BLUE wire
GREEN wire
RED wire
BLUE wire
GREEN Wire
Ω
loudspeaker load, or use terminals marked
83Ω / 70V
42Ω / 70V
21Ω / 70V
T12
GREEN wire
BLUE wire
RED wire
165Ω / 100V
83Ω / 100V
42Ω / 100V
T13
BLACK wire
BLACK wire
BLACK wire