source:Industry News release time:2021-10-20 Hits: Popular:Brand bar audio wholesale
In the balanced signal line of the professional audio terminal connected to the XLR connector, pin 1 is always used as the ground wire. However, there is no clear regulation on which wire should be used to transmit the uninverted signal and which wire should be used to transmit the inverted signal. Generally, the wire that transmits the signal that has not been inverted is called the "hot" wire, and the wire that transmits the inverted signal is called the "cold" wire. It has been used so casually for decades.
The connection method in the balanced wiring can be determined by whether the polarity of the correct polarity in the professional audio system is reversed, that is, pin 2 or pin 3 should be connected to the "hot wire" (for the correct polarity, please refer to Appendix A1 of this book). Assuming that the audio system has not been inverted, that is, the positive signal on the LP compact disc or CD record is also a positive signal at the speaker input, you only need to add the balanced signal line to the pin 3 of the power amplifier. The “hot” signal is transformed into a “hot” signal on pin 2, which will cause the system to invert the phase.
When replacing balanced professional audio equipment, such as digital processors, preamplifiers or power amplifiers, you should first find out whether the XLR sockets on these new audio equipment are connected in the same way as the original equipment. Of course, it is possible to change the polarity of the sound system by changing the connection of pins 3 and 2 on the balanced signal line. However, the simplest way to change the polarity of the audio system is to change the two wires of the speaker cable, one red and one black. Assuming that pin 2 and pin 3 of the signal line are randomly changed, professional audio may make other systems unable to work normally or change the polarity when you don't want to change the polarity.
Popular recommendation
F124 Home ktv audio Vendor
2021-07-14Resolution 5E Big sound bar Vendor
2021-07-16Dance Stack Overview Car stereo Factory
2021-07-16Infrabass 218Sound for bars Vendor
2021-07-14C12 Bar hall sound Merchant
2021-07-26I3 Small bar sound Vendor
2021-07-26F215 MK2 ktv bar sound Factory
2021-07-14EVO 6E KTV audio Merchant
2021-07-16Resolution 4E Bar speakers Factory
2021-07-16Resolution 5T Touring KTV audio wholesaler
2021-07-16XQ48 Bar sound bar Merchant
2021-07-26I8SUB Gymnasium audio Vendor
2021-07-26How to eliminate audio current sounds
2023-02-08Professional entertainment audio manufacturer!School audio Vendor
2021-10-26The cost of holding a concert in rainy days is high. How to choose the sound?Bar needs sound
2022-02-21Which websites should you look at when entering the audio industry?
2022-03-23Steps to debug professional audio engineering equipment
2021-09-23How much is a set of bar speakers Marten Audio
2022-12-22Acoustic principle of sound.Bar audio set Processor
2022-11-03How much do you know about the sound characteristics of various countries in the world?
2022-03-26Six aspects to pay attention to when buying KTV speakers
2022-03-14What is a monitor speaker, an essential equipment for stage performances.Anhui Bar Audio manufacture
2022-03-08Shanghai popular bar MASTER CLUB dedicated audio system is provided by MASTER Audio
2022-09-07What factors determine the quality of sound
2022-10-24