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 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. CAUTION! This combination of symbol and signal word indicates a pos‐ sible dangerous situation that can result in minor injury if it is not avoided.
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! Risk of fire Do not cover the device nor any ventilation slots. Do not place the device near any direct heat source. 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.
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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.
Features Features Special features of this active 2-way full-range monitor: 1 × 15" woofer, 1 × cone tweeter Output power 150 W Frequency response 45 Hz … 18 kHz 3-band equalizer Line and microphone inputs (XLR), line out (XLR), NL4 out for passive speakers Gain and level control Tripod mounting flange Trapezoid wooden cabinet with felt cover...
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.
Installation 4.1 Pin assignment You can use XLR plugs with balanced or unbalanced wiring. In the following, we will give you an overview of the various options. XLR connections for signal in XLR mounting sockets serve as signal inputs, XLR mounting plugs serve as signal outputs. and outputs Drawing and table indicate the XLR pin assignment.
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Installation Unbalanced wiring: Ground, shielding Signal Bridged to pin 1 active 2 way full-range monitor...
Connections and operating elements Connections and operating elements MA150...
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Connections and operating elements 1 ON/OFF Use the mains switch to turn the unit on or off. 2 STANDBY Push button to enable or disable the energy saving mode. When the box receives no signal for 60 minutes, it switches to standby mode. When it receives a signal again, it auto‐ matically switches back to normal mode.
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Connections and operating elements 4 SPEAKER OUTPUT NL4 output to connect a passive monitor. 5 LINE OUTPUT XLR output to connect another active monitor. 6 LINE INPUT XLR input for line signals (PA, preceded speakers etc.). 7 MIC INPUT XLR microphone input. 8 LF Control to attenuate or increase the low frequencies.
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Connections and operating elements 10 HF Control to attenuate or increase the high frequencies. Turn it clockwise / counter-clockwise to increase / decrease the treble by ± 6 dB. 11 LINE VOL Control to adjust the volume of the line input (Gain). Turn the knob clockwise / counter-clockwise to increase / decrease the volume of the input.
Technical specifications Technical specifications System Active 2-way full-range monitor with built-in crossover Speakers 1 × 15" woofer 1 × cone tweeter Connections NL4 outlet for passive speakers LINE in and out (XLR) MIC input (XLR) Frequency response 45 Hz … 18 kHz (–3 dB) Sound pressure level (1 m) 120 dB Level adaptation...
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Technical specifications Line: 0.02 % Microphone: 0.04 % Load impedance 4 Ω Input impedance 10 kΩ Operating voltage supply AC 230 V , 50/60 Hz Housing Wood, trapezoid, black felt cover Dimensions (W × H × D) 715 mm × 450 mm × 505 mm Weight 24.35 kg active 2 way full-range monitor...
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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