Altimium AMP3V, User Manual

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40W Power Amplifier
Altimium 6 www.altimium.com
Figure 4 Audio Output Connection
Note: Speakers to be connected should be with constant pressure.
3.3.2 Audio Inputs
AMP3V provides with 2 stereo audio inputs, one microphone input and one digital fiber
audio input. The following figure shows the audio input ports.
Figure 5 Audio Input Ports

48V phantom power input
When the switch turns to “48V” (It has a good frequency characteristic, high input
impedance and high sensitivity in this mode), the MIC input will provide a 48V phantom
power. This is usually used for power supply for condenser microphone, Connection is:
“+” connects to positive, “-” connects to negative and “
” to ground.
Note : In this mode, only condenser microphone can be connected with.

MIC input
When the switch turns
to “MIC” (It has a low frequency characteristics, and wide
frequency response in this mode), the microphone input is used for connecting with
dynamic microphone. There are two different connections:
a) Unbalanced connection:
“+” and “ ” connect to ground, and “-” connects to signal.
“-” and “ ” connect to ground, and “+” connects to signal.
b) Balanced connection:
“+” connects to positive, “-” connects to negative and “ ”
COM 70V 100V
Speaker
Speaker Speaker Speaker
(100V/10W) (100V/10W)
(100V/10W)
(100V/10W)
Dial Switch, to select the MIC input mode,
includes MIC (dynamic microphone), 48V
(condenser microphone) and LINE (normal
audio or wireless microphone).