Equalizer malfunctioning in pro audio.Lanzhou Conference Room Audio

　　The equalizer is the most used equipment in the peripheral equipment, so we should pay special attention to it. Here are some problems and troubleshooting that need to be paid attention to when adjusting the equalizer:

　　1. Some mixers will have a 7-9 band equalizer. Such an equalizer can only be used to simply adjust the tone. It belongs to an auxiliary nature. Therefore, it is best not to oversize such an equalizer when using it. Otherwise, the level of the main output of the mixer will often exceed the standard. Another such equalizer generally has a switch, and pay attention to the working state of this switch when using it.

　　2. Some dual-channel 15-segment equalizers will have a status switch, which can convert the dual-channel 15-segment equalizer into a single-channel 30-segment equalizer. At this time, you should pay attention to the frequency of each segment before adjusting. .

　　3. The two-channel 31-band equalizer that we use the most at present is the following points:

　　a, 6dB and 12dB switch: some equalizers have 6dB and 12dB working state switch, generally it is better to adjust at 12dB.

　　b. Low-pass or high-pass: Some equalizers have low-pass or high-pass adjustment functions. Pay attention when adjusting. If you attenuate the bass too much, the sound will not be full and thin; if you attenuate the treble too much, the sound will be too dim and not worn. Permeable.

　　c. Frequency push-pull key: When adjusting, pay attention to each frequency push-pull key of the equalizer to see if it is normal; at the same time, pay attention that the push-pull key should not be attenuated or boosted too much, especially when boosting, generally not more than 6 dB.

　　d. Connection: The input and output of the equalizer generally have two ports: XLR and TRS. Except for the different shapes, the functions are still the same. In fact, they are all balanced line ports, so we need to use XLR when connecting the equalizer. Signal line and TRS6.35 stereo signal line for balanced connection.

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