Licensed electricians install and repair public address systems. Hire these experts to configure or repair the speakers with stands and fly speakers for a small venue. They also deal with cluster arrays public address systems for large venues like a theater. Find out the appropriate public address system to install at your event form the licensed electrician. Seek help from a licensed electrician if you notice the following signs from your public address system.
If the mixer fails, you should get a licensed electrician to fix it. Most public address systems have a separate monitor desk need an experienced crew to operate it. Spare channels will fix a channel failure, but if the whole mixer fails, only a qualified electrician who has necessary tools can fix it correctly. Use a separate microphone preamplifier if your mixer fails as you wait for the electrician. Avoid over-mixing because that destroys the sound your mixer will produce. Use compression sparingly by creating consistent dynamics instead of concentrating on adding punch. Do not overuse the EQ if you are not in the studio because you will destroy the quality of the live music.
Avoid under-mixing at all costs. Digital consoles allow you to save presets of your settings but check the presets before you continue with other things. If you are using a digital desk, the graphic on the screen will guide you. You need the graphic of the screen for guidance but not to assume that it will make decisions for you as you use the digital desk. Listen to the sound of the music to determine its quality. You need to balance the instruments instead of mixing all of them evenly. Know how to set levels and route signal properly. Parallel compression, gaining structure, and signal flow are essential. The proximity effect and phase relationships can undetectably ruin the mixer. After doing everything right, the mixer should be able to produce quality sound, but if it does not, contact a licensed commercial electrician. You should not repair the mixer by yourself if you do not have the skills because you will damage it further.
Find a licensed electrician to check the public address system if the crossover or controller fails. You should have active monitors or multiple amplifier racks. You should be cautious with the output levels of your mixer if the crossover has limited that you usually use. Such cases need solutions from a licensed electrician.
The public address system may not be functioning correctly because of a failed power amplifier. Dispense with monitors, and use the monitor amp. Run everything in mono as an alternative while using each half of the power amp to run the subs and the mid/high speakers. This will restore your monitors if the monitor amp fails too. Running on a mono without enough amplifiers can be hectic therefore restrict the public-address system to vocals and dispense with the subs. If that fails, hire a licensed electrician for expert diagnosis and repairs.
If the radio microphone fails, use the wired microphone instead. Alternatively, use a single microphone to cover two sources in that the sources share one microphone. The microphone may be failing because of weak or dead batteries. Examine the terminals of the microphone’s battery to make sure that the batteries are not dead. Ensure that the wireless microphone and wireless receiver operating within the frequency range to avoid failure of the microphone. Failure of the audio interconnect cable can lead to microphone malfunctions. Find out if the operating frequency is appropriate for the location. The model number of the wireless system and the zip code of the location contribute to the functioning of the mic. The interference may also be from electronic devices that are near the public address system, such as mobile phones and computers. Install the antennas of the wireless receiver correctly or else the microphone will not work correctly. Your last option is to change the power supply if there is a shortage but if nothing seems to work, call a licensed electrician.