I have read Okam Razor's "Audio Metaphysics" and another "Occam razor teacher, about the audio metaphysics is wrong", the benefits are many, here also talk about the power cord pair fever audio Personal opinion of the system impact.
Different quality and structure of audio signal lines and speaker cables have an impact on the sound of the equipment. This view is believed that there will not be many people who question, but the structure and quality of the power cord also have an impact on the sound, but many people It is considered to be metaphysical, it is a psychological effect, and it is a misleading or even a scam in the audio industry. The reasons are often the following reasons:
1 The power cord only acts as a transmission power source, and the audio signal does not pass through it at all, so it does not affect the sound quality;
2 The power cord is the transmission carrier between the power plant and the electrical appliance. The short 1.5 meters is simply a glass of water, which has little effect;
3 If it is replaced, it is a full replacement.
What's more, it will irony the difference between residential transformers, wind power, hydropower and nuclear power. In fact, it is quite simple. It costs a few hundred yuan for the high-quality power cord and the pheasant line to be in direct contrast. It’s the so-called practice of truth, and theoretically taking things as a basis for judging right and wrong is obviously not able to withstand the test of practice. . Home Theater Network
Assume that the power supply of the household is in compliance with the requirements, the wiring at home is definitely poor, so the power supply of the audio system is the bad line + good line. According to the theory of the bucket, the decision should be the shortest board, that is to say, the addition is good. The line is also useless. In the actual listening comparison, the high-quality power cord will improve the smoothness and strength of the sound. This is an unquestionable fact. If this is the case, according to the bucket theory, the shortest board is the best. The power cord is the shortest board! Not the poor quality wires of the residential community. The reason for saying this,
Things are like this:
Our power supply system is 50HZ, of course, there are high frequency harmonics, such as 100hz, 200hz, and of course, clutter (your TV/fridge/air conditioner will generate clutter), the frequency is uncertain. Our equipment, regardless of the CD/dac/amplifier, can be the 50HZ power supply, not harmonics or clutter. The usual wire frequency band is relatively wide. I estimate that there is no problem in transmitting audio (0hz---20kHZ), and a good power line is just a narrow band, which filters out some harmonics and clutter. He is a low-pass filter. That is to say, the frequency band of the good line is relatively narrow. So short planks are a good line. Understand?
Power is critical in all analog systems (HIFI systems are essentially analog systems), which is the foundation of the building. There is a problem with the power supply, and even the best system is no good. It is recommended that you have a big cow on your system that will make your system super-level. Because all cattle are low pass, purify the power.
Let’s talk about the speaker cable, the speaker cable and the power cable are just the opposite:
Originally a difference line, and then connected to a good line on the difference line, the sound quality is not improved, in this case, the difference line is a short board. Because we require the speaker cable to have a high bandwidth, the bandwidth of the good line is wide, and more sound details can be transmitted; the bandwidth of the difference line is narrow, the high frequency is attenuated, and the details of the sound are missing.
So practice is the only criterion for testing truth. Do not easily doubt practice. If your theory and practice conflict, use facts to correct your understanding. For more home theater knowledge, welcome to follow WeChat: cnhifi.
Football Stadium Advertising LED Screen
This series is a classic football field advertising LED Screen, which is specially used for advertising display in various stadiums, such as football fields, basketball courts, badminton courts, tennis courts, volleyball courts and other competitive sports halls. Football Stadium Advertising LED Screen with IP65 waterproof level, excellent anti-collision ability, can resist the impact of balls. High brightnesee makes good perfomance even under sunshine. Good protection design on top of cabinet with thick anti-collision cotton.
Football Stadium Advertising Led Screen,Led Panel Display,Led Video Panel, Football Cup Led Display Billboards
Guangzhou Cheng Wen Photoelectric Technology Co., Ltd. , https://www.cwdisplay.com