AudioPressBox APB-216 C-D Gebruikershandleiding - Pagina 7
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Usage
APB-216 C-D is designed for use as a distribution audio amplifier for press conferences. It features two analog inputs, with input PAD – Mic/
Line switch, one digital input from Dante network and sixteen analog audio outputs with individual output level switch – Mic/Line. Device also features
built-in fixed High Pass Filter set to 120Hz and fixed Compressor with Limiter to ensure high quality output signal without pops especially when used
with microphones. Mic/Line Switch is input PAD (-26dB) for selecting the input sensitivity for microphone or line level inputs. With switch set to Mic you
can connect input signal levels from -56dBu to -16dBu and at Line position from -30dBu to +10dBu. When Mic input level sensitivity is set you can also
turn ON the Phantom power for the microphone – please use this with condenser microphones only. When the input sensitivity is set to Line, the
Phantom power is automatically turned OFF to avoid damage of connected device.
For proper operation and to maintain declared parameters, it is necessary to drive the APB with the correct signal level from Analog or Dante
Inputs. For checking the input signal level there is an Input Signal Indicator for each Input. You have proper input signal if the LED "OK" is at least
blinking. You can adjust the right input level for Analog Input with the Gain knob. To reach the correct input level when using the Dante input, you should
drive it around -18dBFS at your Dante source device.
Each output is individually transformer balanced and isolated. You can switch the output level for each output separately to Mic or Line.
Nominal output level for Line level setup is +6dBu and -20dBu for Mic level output setup.
Thanks to the built-in 14,8V 2200mAh Li-Ion battery-pack you can use your press box also on places where is no electric power available. So,
no matter if your conference is indoors or outdoors. Our APB can operate up to 10 hours from the battery-pack on full load. Thanks to the Charge status
indicator you always know what is the actual battery-pack charge. If powered from battery -pack and the LED "LOW" is blinking you should immediately
find the power source or the APB will be soon out of power and will Turn OFF. Charge time for fully discharge battery-pack is around 2,5 hours. Every
time the power adaptor is connected the battery-pack is charging. No matter if the Power Switch is turned ON or OFF. There is also battery management
built in for the battery-pack, so it can't be overcharged or deeply discharged. Please never left the unit in discharged state for a longer time
period – it can damage the battery. It is recommended to charge it before not using it for a longer period.
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