After using this box, China Home Theater Network () suddenly wanted to compare the amp and the player to the holy warrior, and the gold box ADP-U7 is like their holy Clothing, because the gold box really allows the equipment to fully surround the small universe.
This year's "Super" of the fire proposed that we should explore the inside of the people. Do you still remember the Saint Seiya? Remember that they are going to explore the small universe in the body? I received a device that can help us explore the inner small universe today, and will compare The detonated product, that is, Golden Sound's USB in-board power processor ADP-U7.
There are many metaphysical sounds in the fever audio, but if the box only lets you see and not talk about the principle, then it is really no problem in the top three. But in fact, when I studied his principles, I found that it was really a mystery. This stuff is actually connected to your equipment through the USB interface (of course, the device has a USB interface), and then purify the power environment in the machine to increase density, increase details, enhance low frequency, and purify The role of the background.
From outside to inside
For example, if a person has a fever, then we should soak people in cold water, or find a doctor to see a doctor, give him medicine? Yes, all people who play audio, pay attention to the external environment - power line , power processor, fever power cord. According to the large-scale direct measurement of the internal power system of the current audio products by Golden Sound of the United States, the power supply of various components such as processors and chips on the circuit board can achieve the purity of the power supply, and there are only a handful of products! Medium and low-priced products, they use a switch-type power supply composed of cheap parts, after the AC/DC conversion in the machine, there will be noise, even a serious voltage floating ripple problem, which is in digital players, Blu-ray machines, AV surround amplifiers and CD players have almost become the norm. Switching power supplies have many advantages that are unmatched by linear power supplies: small size, light weight, high efficiency, etc., but switching power supplies can cause electromagnetic interference, especially the switching power supply of medium and large power levels is more serious. The switching power supply is also sensitive to external noise intruded by the power grid and transmitted to other electronic equipment to cause interference. In other words, even if you buy expensive and perfect ultra-pure AC power processing equipment, you can only deal with the noise in the power grid, but it has no effect on the high-frequency noise generated by the switching power supply, video and digital lines inside the machine. .
Golden Sound uses a variety of instruments to measure various audio equipments. It has found that most of the products are powered by circuit boards, due to AC/DC conversion, and the effects of various parts on the circuit board on the entire power system. The background noise of the universal background is only about -30~-50dB, and the value required for the maximum listening volume of 97dB from a normal hearing person has a huge gap of at least about 50~70dB. This 50~70dB sound signal is mixed with noise. All kinds of "impurities" will directly affect the work of the equipment, and increase the signal error rate in the digital field. What is worse is that in most cases, the noise will be Directly mixed into the final analog output signal, of course, will have a serious negative effect on the sound quality! The sound signal of the mixed noise will be reproduced and broadcasted. No matter how ideal the original recording is and how good the sound source specifications are, it will become flat. Lack of depth, blurred audio, unclear levels, and unclear positioning. As for how it is handled, what is inside the machine, this is the secret of Golden Sound.
Experience
I have used the AV system to experience this magical gold box. Recently, we are conducting a panoramic AV amplifier evaluation. Every family has some involved. It is still relatively easy to pick up the problem on the AV amplifier - the sound field is good, the sound lines are coarse, the middle and low frequency lacks the line sense; the details are more, the lines are strong, the voice is thin, and the loud volume is noisy. . Fortunately, all AV amplifiers now have a USB interface. After picking up the gold box, the first feeling is that the original problem has improved significantly. The sound field is good, the middle and low frequency lines are out, and the sound knot is more clear. The original sound is thin, obviously the fire is falling, and the sound becomes balanced. If the total result is the most obvious change, I think there are two points. The first is that the sound background is cleaner, and the second is that the sound becomes balanced.
In any case, the Golden Sound USB Gold Box ADP-U7 is a magical accessory. It is suitable for any player and amplifier products with USB interface, whether it is Hi-Fi or AV equipment.
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