As we all know, the audio industry is now increasingly fierce and consumption is becoming more and more rational. Entertainment everyone likes to use PK to determine the level. Recently, our technicians and business managers have been visiting the market and have exchanged and studied with our distributors. How to stand out in PK, I also have some experience, here to share with you. As the saying goes, it is difficult for a clever woman to be without rice. The technology is good, on the one hand, we can also move carefully on the equipment. You can achieve unexpected results. 1. Prepare a dedicated power amplifier (also known as a PK machine, which can be used to directly switch one or a group of speaker amplifiers with a remote control), or a set of similarly functional PK lines (also called switching lines) in the same Place the speakers in almost the same position, use the same source, the same preamp, the same or a few different types of songs, the same amplifier (preferably the power amplifier), the same channel Switch the power, tone quality and sensitivity of the PK speaker. 2. The high-end bass of the PK used in the PK hits the 12 o'clock position (ie, no adjustment), and the direct-out method is used for comparison. Because if you don't adjust, you can listen to it, then fine-tuning is better to listen to better singing. 3, and the most important point is: the sound source (CD player or VOD song computer) two channels (white and red) output terminal connected to the preamp, be sure to plug both ports, because modern recordings often different The sounds are recorded separately into the left and right channels, so the sounds of the left and right channels are different. The so-called "left side is ringing to the right"! 4. In addition, the same signal switching line (PK line) must be used to connect the power amplifier; the two boxes are the same regardless of the audio source, power amplifier, preamp, and line, so PK is the most fair. If you use two left and right signal lines to connect to the power amplifier at the same time, it is unfair and unreasonable to switch the two PK speakers with the two channels of the power amplifier. These are some of the details of PK. In order to achieve good results in PK, the selection of equipment and the debugging technology are also very important, so we usually pay more attention to this aspect. Finally, I wish everyone can achieve good results in PK! ! ! Guangzhou Ehang Electronic Co., Ltd. , https://www.ehangmobile.com