Commissioning And Operation - Conrad 1047016 Notice D'emploi

11. Commissioning and Operation

Only put the device into operation when you have become familiar with its features and these
operating instructions. Check again that all connections are correct. Do not put the product into
operation if it is damaged.
The PA system should always be the last to be turned on and the first to be turned off. This way
you can prevent any undesired noise (which typically occurs when switching off a mixer) that may
damage the PA system.
Make sure that the connected devices are not overloaded. Playback must never be distorted. If
distorted music signals can be heard although the volume was not set too high, switch off the
PA system immediately and check the connection. If the connection is correct, please contact a
specialist.
The device must only be operated by persons familiar with the operating instructions and observing
them. Keep other persons and children away from the device.
• Turn the controls MAIN LEVEL (8) and SUB LEVEL (7) down completely (to the left).
• Switch on the connected mixer and start playback. Set a medium volume at the mixer.
• Turn the PA system on with the POWER switch (13).
• The display SIGNAL (4) lights up if an input signal is pending at the LINE INPUT (8 or 9) connection.
• Set the mixer volume to approx. 75% of the maximum volume or the maximum undistorted level (visible for devices
with level indicator at the „0 dB mark).
• Now adjust the subwoofer volume with the controller SUB LEVEL (7) and the total volume of the PA system to the
maximum required volume with the controller MAIN LEVEL (8).
This setting achieves the highest possible signal-to-noise ratio and enables the best audio quality.
Make sure not to overload the PA system. Too high a volume may cause damage. The subwoofer should supplement
the satellite speakers in the low-bass area. It should not drone.
• If the display LIMIT (5) lights up, the PA system volume is set too high and must be reduced.
• If the display PROTECT (6) lights up, the integrated protective switch has triggered. In this case, switch off the unit
and let it cool off. If the display PROTECT (6) is still lit after reactivation after the cooling off phase, there is an error.
Check the connection and take the device to a specialist workshop or contact our customer service, if they cannot
find any error.
• After this basic setting, the volume is only set with the mixer volume controller. Every change of the wirings requires
repetition of the setting process.
• Try switching the switch SUB PHASE (1). Depending on site of setup of the satellite speakers, the phase inversion
of the subwoofer caused by this switch may improve bass playback. The position where the bass is cleaner and
louder is correct.
• To switch the system off, first switch off the PA system with the POWER switch (13) and then switch off the mixer.
33