General notes General notes This user manual contains important information on safe operation of the device. Read and follow all safety notes and all instructions. Save this manual for future reference. Make sure that it is available to all persons using this device. If you sell the device to other users, be sure that they also receive this manual.
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This combination of symbol and signal word indicates a pos‐ sible dangerous situation that can result in material and environmental damage if it is not avoided. Warning signs Type of danger Warning – high-voltage. Warning – danger zone. PA 502 A...
Safety instructions Safety instructions Intended use This device is intended to be used in a sound reinforcement system. Use the device only as described in this user manual. Any other use or use under other operating conditions is consid‐ ered to be improper and may result in personal injury or property damage. No liability will be assumed for damages resulting from improper use.
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Always use proper ready-made insulated mains cabling (power cord) with a pro‐ tective contact plug. Do not modify the mains cable or the plug. Failure to do so could result in electric shock/death or fire. If in doubt, seek advice from a regis‐ tered electrician. PA 502 A...
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Safety instructions CAUTION! Possible hearing damage The device can produce volume levels that may cause temporary or permanent hearing impairment. Over an extended period of time, even levels that seem to be uncritical can cause hearing damage. Decrease the volume level immediately if you experience ringing in your ears or hearing impairment.
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Keep the device away from naked flames. NOTICE! Operating conditions This device has been designed for indoor use only. To prevent damage, never expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and strong vibrations. PA 502 A...
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Safety instructions NOTICE! Power supply Before connecting the device, ensure that the input voltage (AC outlet) matches the voltage rating of the device and that the AC outlet is protected by a residual current circuit breaker. Failure to do so could result in damage to the device and possibly injure the user.
Installation Installation Unpack and carefully check that there is no transportation damage before using the unit. Keep the equipment packaging. To fully protect the device against vibration, dust and moisture during transportation or storage use the original packaging or your own packaging material suitable for transport or storage, respectively.
XLR connections for signal in XLR mounting sockets are used for signal inputs. XLR mounting plugs provide the output sig‐ and outputs nals. Drawing and table indicate the XLR pin assignment. Balanced wiring: Ground, shielding Positive signal (+) Negative signal (–) PA 502 A...
Installation Unbalanced wiring: Ground, shielding Signal Bridged to pin 1 4.2 Tips on handling speakers We recommend you to set up the speakers in a way, that the sound signals can reach the audi‐ ence unobstructedly. It will often be helpful to mount the speakers on tripods. Thus, the sound will be evenly spread with maximum range throughout the audience area.
Connections and operating elements Connections and operating elements PA 502 A...
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Connections and operating elements 1 VOLUME Volume control. Turn the knob clockwise to increase the volume or counterclockwise to decrease the volume. 2 BASS Tone control to adjust the low frequencies. Turn the knob clockwise to increase the low frequencies. Turn the knob counterclockwise to decrease the amount of bass.
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10 LED LINE This LED lights up during operation when the input sensitivity is set to ‘LINE’. 11 LED MIC This LED lights up during operation when the input sensitivity is set to ‘MIC’. PA 502 A...
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Connections and operating elements 12 120Hz Use this switch to attenuate the low frequencies below 120 Hz. This function reduces the transmission of impact noise and extends the service life of the woofer. 13 CLIP Indicates clipping. If this LED flashes or lights up the input signal level is too high. active 2 way full-range speaker...
Dispose of this device through an approved waste disposal firm or through your local waste facility. When discarding the device, comply with the rules and regulations that apply in your country. If in doubt, consult your local waste disposal facility. PA 502 A...
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