Alto Professional TS212S Guide D'utilisation page 5

Features
Rear Panel
1. Power Input: Connect the included power cable to this
input and connect the other end of the cable to a power
source. Make sure the Power Switch is set to off when
plugging and unplugging the cable.
2. Fuse: If the unit's fuse is broken, power off the subwoofer
and disconnect it from the power outlet, and then lift this
tab to replace the fuse. Replace it with a fuse with an
appropriate rating (printed under the unit's power cable
input). Using a fuse with an incorrect rating can damage
the unit and/or fuse.
3. Power Switch: Turns the subwoofer on/off. Make sure the
Volume knob is set to "zero" before turning it on.
4. Power LED: Illuminates when the subwoofer is on.
5. Outputs: Use standard XLR cables to connect these outputs
to a loudspeaker. The audio signal with frequencies above
the subwoofer's crossover frequency will be sent out of
these outputs. 1 is the left output, and 2 is the right output.
6. Inputs: Use a standard XLR cables (not included) to
connect your sound source to these inputs. 1 is the left
input, and 2 is the right input.
7. Volume: Turn this knob to adjust the subwoofer's output
volume.
8. Signal/Limit LED: This LED lights up green when an audio signal is sent to the
subwoofer—it flashes at lower levels and lights solidly at higher levels. The LED lights up
red when output limit/protection is active—if the LED is lit red continuously, reduce the
volume of your audio source.
9. Polarity Reverse Selector: Press this switch to reverse the phase of the subwoofer's
output. Use this to reduce phasing or cancellations caused by the subwoofer's location in
a listening space (low-frequency signals have longer wavelengths, which can cause these
unwanted effects).
Important: This affects the signal going to the subwoofer's amplifier only, not the signal
sent to the outputs.
10. Output Full-Range: Press this switch to enable or disable the high-pass filter bypass.
When enabled, the light will be on, and the audio signal across the entire frequency
bandwidth will be sent out of the outputs. When disabled, the light will be off, and the
audio signal above the crossover frequency will be sent out of the outputs.
Note: The subwoofer will always play frequencies below its crossover frequency, regardless
of the position of this switch.
11. Extended LF: Press this switch to enable or disable the extended low-frequency response
of the subwoofer. When enabled, the light will be on, and the subwoofer will play
frequencies higher than its crossover frequency. When disabled, the light will be off, and
the subwoofer will play only frequencies below its crossover frequency.
Note: If this function is enabled, make sure that the subwoofer's extended frequencies do
not cause any phasing or cancellation if they overlap with your loudspeakers' frequencies.
9
10
11
7
8
6
5
1
3
2
4
6
5
5