Alto Professional APX2000 Guia De Inicio Rapido página 3

REAR PANEL DIAGRAM
CH1 CH1
4
3
CH3 CH3
4
3
1. COOLING FAN- This fan secures cooling for the amplifier. The airflow is from front to rear. The fan speed is
electronically regulated depending on the temperature of the power devices. Do not block these fan grills or
mount the amplifier in an enclosed rack, which could cause the amplifier to overheat.
2. LOW PASS FILTER – This switch activates the built-in low cut filter. All audio below 30 Hz will be removed
from the output signal.
3. BALANCED COMBO INPUTS – Connect your mixer to the balanced XLR
or balanced 1/4" input for that channel.
4. OUTPUT MODE SWITCH –
modes:
Stereo Mode
In this mode, CH 1 and CH 2 operate independently (as a normal stereo amplifier) The CH 1 input signal will
be output from the CH A output connector, and CH 2 input signal will be output from the CH 2 output
connector.
Parallel Mono Mode
In this mode, CH 1 input signal will be output from the
output connectors of both channels.
Bridged Mode
In this mode, CH 1 input signal will be output from the
bridge-mono output connector.
5. CHANNEL OUTPUTS – Connect your speakers' input
jacks to these outputs.
• For the binding posts, red is the positive signal and
black is the negative signal.
respect the speaker polarity when using binding
post. Turn off the unit before connecting an audio
signal to the binding post to avoid any electric shock!
•
The SPEAKON* outputs
polarity is secured automatically. They prevent shock hazard and they lock-in securely.
6. POWER IN – Connect the cable to a standard wall outlet. Be sure the supplied voltage matches the required
voltage of the amplifier. Do not connect the amplifier to an outlet that does not match the required voltage;
doing so could damage the amplifier.
* Speakon is a trademark of Neutrik® AG, registered in the U.S. and other countries.
CH2 CH2
CH1 CH1 CH2 CH2
2
3
1
CH4 CH4 CH3 CH3 CH4 CH4
2
3
The APX2000 presents three operating
Please make sure to
are specifically designed to connect to high power speakers. The correct
5
5
5 5
WARNING!:
STEREO/MONO BRIDGE SWITCH when the
amplifier is on
WARNING!: Do not allow any wires of
adjacent terminals to come in contact with each
other. Also, do not connect either positive
(red) output to chassis ground.
3
5
5
6
5
5
How do I know if my 1/4" cables
are balanced?
BALANCED
UNBALANCED
Do not adjust
.
the