Common problems and solutions for bar audio

The need to work for a long time makes the number and frequency of bar speakers relatively large, so it is inevitable that some common problems will sometimes occur. In order to create a good leisure and entertainment environment for consumers, we must use professional knowledge to solve common problems related to bar audio.

Common problems and solutions for bar audio

1. Volume adjustment problems and solutions

Problem: Most people often turn the volume adjustment button to the full when using the speaker, and the attenuator of the rear power amplifier is -6dB and -10dB, so the sound quality of the adjustment mixer is often damaged, and it is very easy to have sound roar, external noise and sound quality distortion in the long run.

Solution: Maintain the same volume while controlling the decibel output (typically 6dB) voltage of the mixer or pre-amp to be 1 times higher to ensure that there is sufficient input headroom.

2. Audio and power amplifier configuration problems and solutions

The output power of the power amplifier is too high, which is the main cause of damage to the tweeter. In a professional setting, the speaker can generally withstand a large signal impact of 3 times the rated power, and the peak impact of 5 times the rated power is also within the acceptance range, but this does not fully guarantee the sound quality of the external amplifier.

Solution: Under normal use conditions, the rated output power of the power amplifier should be maintained in the range of 2-3 times the rated power of the speaker, so as to ensure that the power amplifier does not cause distortion at the maximum power of the speaker.

3. Problems and solutions to the use of frequency dividers

The selection of the crossover is low, and the power burden is too heavy, which can easily cause the tweeter to burn, and the same is true for the midrange horn.

Solution: When using the crossover, the crossover point should be reasonably selected in strict accordance with the working frequency range of the speaker provided by the manufacturer.

4. Equalizer tuning problems and solutions

The high and low frequencies of the equalizer are raised too high, resulting in phase distortion that seriously stains the music, and at the same time, this is often the main reason for the burning of the audio tweeter, and the short-circuit burning of the speaker is also a cause of the market.

Solution: The frequency equalizer is set to compensate for the various defects of the indoor sound field and the uneven frequency of the speaker, we should pay attention to the actual spectrum analyzer or use other instruments to debug. The debugged transmission frequency characteristics should be relatively stable within a certain range.