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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General notes Symbols and signal words This section provides an overview of the symbols and signal words used in this user manual. Signal word Meaning DANGER! This combination of symbol and signal word indicates an immediate dangerous situation that will result in death or serious injury if it is not avoided.
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General notes Warning signs Type of danger Warning – danger zone. active monitor...
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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Safety instructions DANGER! Electric shock caused by high voltages inside Within the device there are areas where high voltages may be present. Never remove any covers. There are no user-serviceable parts inside. DANGER! Electric shock caused by short-circuit Always use proper ready-made insulated mains cabling (power cord) with a pro‐ tective contact plug.
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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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Safety instructions 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. 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.
Features Features The active monitors are suitable for amateur use in smaller rooms as well as professional use on very large stages. Special features of the device: 2-way system: 1" tweeter and 10", (item no. 309203), 12", (item no. 309205) or 15" woofer (item no.
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.
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Installation NOTICE! Use of stands When mounting the device onto a stand, ensure that the stand is in a safe and stable position and that the weight of the device does not exceed the maximum permissible load capacity of the stand. Mon A10, A12, A15...
Connections and operating elements Connections and operating elements Rear panel active monitor...
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Connections and operating elements 1 XLR chassis plug LINK This outlet can be used to feed the signal to further active speakers. 2 XLR / phone combo socket LINE IN Line level input for balanced or unbalanced signals. 3 Ground/Lift button If a ground loop is causing hum you can use this switch to cut the connection between the earth pin of the device and the signal ground in the device.
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Connections and operating elements 7 Mains switch POWER Turns the unit on or off. 8 MONITOR/FOH button Use this switch to select various EQ characteristics, suitable for different applications. MONITOR: For use as stage monitor with feedback suppression FOH: For use as PA speaker (front of house) 9 LED ON This LED lights up green when the device is switched on and voltage supply is present.
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Connections and operating elements 10 LED SIGN/LIMIT This LED lights up green on incoming input signal. This LED lights up red when the internal output signal is being limited (excessive input signal!). 11 Rotary control LEVEL Control to adjust the LINE input level. Turn the knob clockwise or counter-clockwise to increase or decrease the input volume.
Technical specifications Technical specifications Pro Mon A10, Pro Mon A12, Pro Mon A15, Item no. 309203 Item no. 309205 Item no. 309207 System 2-way active monitor Speakers 1 × 10" woofer 1 × 12" woofer 1 × 15" woofer 1 × 1" tweeter 1 ×...
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Technical specifications Pro Mon A10, Pro Mon A12, Pro Mon A15, Item no. 309203 Item no. 309205 Item no. 309207 Dispersion angle (V × H) 80° × 80° 80° × 80° 60° × 60° Operating supply voltage AC 230 V , 50 Hz / AC 110 V AC 230 V , 50 Hz / AC 110 V...
Plug and connection assignment Plug and connection assignment Introduction This chapter will help you select the right cables and plugs to connect your valuable equip‐ ment in such a way that a perfect sound experience is ensured. Please note these advices, because especially in ‘Sound & Light’ caution is indicated: Even if a plug fits into the socket, an incorrect connection may result in a destroyed power amp, a short circuit or ‘just’...
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Plug and connection assignment Since the interference affects both cores equally, by subtracting the phase-shifted signals, the interfering signal is completely neutralized. The result is a pure signal without any noise inter‐ ference. 1/4" TS phone plug (mono, unbalanced) Signal Ground, shielding 1/4"...
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Plug and connection assignment 1/4" TRS phone plug (stereo, unbalanced) Signal (left) Signal (right) Ground XLR plug (balanced) Ground, shielding Signal (in phase, +) Signal (out of phase, –) active monitor...
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Plug and connection assignment XLR plug (unbalanced) Ground, shielding Signal Bridged to pin 1 Mon A10, A12, A15...
Troubleshooting Troubleshooting In the following we list a few common problems that may occur during operation. We give you some suggestions for easy troubleshooting: Symptom Remedy The unit does not work 1. Check the power supply connection and the position of the mains switch POWER.
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3. Make sure that all audio devices are connected on the same power grid circuit and therefore share the same ground reference. If the procedures recommended above do not succeed, please contact our Service Center. You can find the contact information at www.thomann.de. Mon A10, A12, A15...
Protecting the environment Protecting the environment Disposal of the packaging mate‐ rial For the transport and protective packaging, environmentally friendly materials have been chosen that can be supplied to normal recycling. Ensure that plastic bags, packaging, etc. are properly disposed of. Do not just dispose of these materials with your normal household waste, but make sure that they are collected for recycling.
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