The main technical parameters of the PA loudspeaker system are generally marked with impedance, which is generally 4 Ω Or 8 Ω. This value refers to the rated impedance, which is a pure resistance value. According to GB7313-87, the impedance values are 4, 8 and 16Ω. The impedance of horn loudspeaker system is a complex problem. I'm afraid it is not clear that tens of thousands of words can be explained, and it is too professional to understand. Introduce the relationship between impedance characteristics and sound performance.
If the impedance curve of the inverter box has no obvious double peak or single peak, either the design itself is defective or the manufacturing process is wrong. When the box volume is too large, sometimes the middle and high frequency peaks of the double impedance peaks are obviously larger than the low frequency peaks, and the acoustic wave radiated by the inverter tube is too small, which makes the resonant frequency of the whole system too low. At this time, the low-frequency diving seems very deep, but still feels weak. If the low frequency peak in the double impedance peak is obviously larger than the high frequency peak, it indicates that the acoustic radiation of the inverter is too strong. At this time, the low frequency has been artificially raised, and the sense of quantity is great, but the transient response will become worse, and the sense of hierarchy of the low frequency band will be greatly damaged, with "quantity" but not "quality".
