Unbelievable sound Soulution 530
Although the trend of high-priced Hi End audio is a foregone conclusion, the equipment for 10,000 yuan jump has long been abound, but when I heard the price of the Soulution 530 integrated amplifier up to 2 million Taiwan dollars, I was surprised that it was unbelievable. How could anyone be so Practically, designing such a price amplifier is similar to its own front and rear, and a huge integrated amplifier like a small coffee table? It is reasonable to speculate that someone who designs such an amplifier must be an ambitious adventurer, but this is quite different from Cyrill Hammer, the president of Soulution I know. Cyrill is probably the most modest and gentle and elegant I have ever seen. The owner of the audio company, he graduated from the top Lausanne Institute of Technology in Europe, and also studied piano for several years. If he switched to other audio business, he must have been preaching it for a long time. He wants to let everyone know, but if it is not for me. Inadvertently asked, Cyrill didn't mention it at all. Even if it was said, it was just an understatement. He said that he is not professional enough. How can a modest gentleman make Soulution full of momentum and power regardless of size, price and sound performance? What about top audio equipment? In the interview with the original Soulution in August last year, I realized that Cyrill's business was originally a large-scale motor manufacturing factory. It not only has a fully automatic production line, but also has the ability to manufacture various special motors, from small appliances to small appliances. Car manufacturers are their customers. It is reasonable to say that such a company does not need to make money by making sound. In fact, it is true. Cyrill and another partner Roland Manz founded Soulution in 2000, but before and after the first product. Cut off and retrained three times, and did not officially launch until six years later. The 530 integrated amplifier introduced in this article was published at the Munich Audio Show in 2011. The result was only three years after the mass production. It was only because Cyrill was not satisfied with the previous line. The sound industry may not find a second like Soulution. It is not anxious to make money, and constantly improve the products until the manufacturers are satisfied. Simply put, Cyrill is simply taking the money made by their own motor factory to realize their dream of pursuing the ultimate music replay. From this point of view, Soulution , we can understand the idea of ​​this company. They are not unrealistic, but don't have to worry about actually making money. Most people may think that 530 is crazy, but for Cyrill. Say, if they only come with an amplifier that is similar to everyone, that is meaningless. To do, you have to make a product that is truly different and cannot be surpassed. From the inside out, you must use other integrated amplifiers on the market. Far behind, this is the value of 530. In the end, how do we think about the 530, which is difficult to locate? Perhaps we should not regard it as a comprehensive amplifier, but to use the standard of the combination of the front and the back. In fact, Soulution is indeed the 5 series. The 520 front stage and the two 501 mono rear stages are completely put into a single chassis. For the consumer, some people may think that it is not good to buy 520 and 501 directly, but if you don’t play equipment, don’t want to Between many front and rear levels, and want to pursue the ultimate replay performance, and the budget is not a problem, then 530 will be the best amplifier solution. What is the power of such a super expansion? The first feature is that the audio fans will fall through the glasses, because it uses a lot of switching power supplies that enthusiasts think is not influent. What is going on? Please look at the internal structure of the above picture, the internal is divided into three layers, the top is the front stage, the middle is two sets of mono amplifier lines, the bottom is the power supply line, the general switched power supply should be small, but 530 Why is the power supply so large, but the most space- consuming part of the chassis? Why does Soulution use many switching power supplies that audio fans don't love? Do they want to save costs? Just the opposite. Cyrill in the 2012 interview Explain to me this topic, power supply is actually the most important part of Soulution , they attach great importance to the amplifier's high current supply capacity, because this is the basic element to fully drive the speaker. However, they have found that traditional linear power supplies reduce the voltage when outputting large currents, resulting in attenuation of low-frequency control. How to solve this problem? Switching power supply is the ideal solution. The switching power supply they developed is not only the best. There is no high-frequency noise problem that is common to people, and even if the current is output, the voltage is stable. The only drawback is that the cost of this switched-mode power supply is higher than that of the traditional linear power supply! What is special about the switching power supply developed by Soulution ? No technical information is mentioned in the original website or foreign media comments. Only the article that the editor-in-chief visited the original Soulution last year got the details from the Cyrill mouth. The description of the following excerpts: Our switching power supply has a two-stage voltage regulation, one is the Power Factor Correction (PFC) power factor correction stage. The other level is the exchanged Pulse Width Modulation (PWM) control, which is at the 70kHz pole. High-frequency operation. In the power factor correction stage, we use Dual Phase Interleaved PFC line and negative feedback to prevent current from flowing back into the power supply, greatly reducing high-frequency noise pollution and reducing total harmonic distortion. The advantage of our switching power supply is that the voltage sent out is very well regulated, allowing the amplifier to obtain a stable voltage under any load. The PWM control circuit allows the circuit to have a good working condition and is very fast. The feedback loop, in order to achieve the highest performance. This switching power supply is developed in cooperation with the third-party manufacturers, in addition, the output filter required for the switching power supply will produce a good optimal adjustment function for the PWM control circuit. This makes the amplifier produce double voltage regulation under high current conditions, which is impossible for any traditional linear power supply. Our switching power supply is a breakthrough in the current Hi End audio industry, with more than 1 Farad capacity. The capacitors are connected to provide almost endless energy and higher control of the horn. This improves the performance of the low frequency band, making the low frequency band more stable, more accurate and the sound field wider. Overall Our switching power supply makes the amplifier sound more lenient, even in complex and dynamic music. As mentioned earlier, our switched-mode power supply also adds a voltage regulator circuit to control the voltage, which is a big influence. You know, if a post-stage uses a traditional linear power supply, you have to do regulation. That is, the power supply part will be too scary, such as the Pass Labs Xs series. But we don't do this. For example, after the 711, we use a switched power supply, plus a capacitor with a capacity of more than 1 Farad (1,000,000 MFD). To achieve the purpose of voltage regulation. This approach allows the switching power supply to supply 10 amps of current, the traditional linear power supply high current and high voltage voltage regulation effect, and the overall power supply including the voltage regulator accounted for a large reduction in volume. The practice has been fully implemented on 701 or 711. Please note that here again, the reason why the 530 uses a switched-mode power supply is not to save money, but to use the latest exclusive technology that is synchronized with the new generation of 701/711 flagship, the level is not reduced, but the same as the flagship. . In fact, two years ago, before the 701/711 level was not released, Cyrill revealed to me that they actually did experiments and replaced a 700-stage power supply with this switched-mode power supply. As a result, the noise was significantly better than that. The traditional linear power supply 700 is more excellent, the low frequency is more stable, more accurate, easier, and the sound field is wider and deeper. This is why they decided to adopt this latest technology regardless of the stereotypes of the audio fans. Another curious question is why the 530's switched power lines are so large. After in-depth research, I found three reasons: First, the 530 is equipped with four 600-watt switching power modules with a total capacity of up to 2,400 watts. Second, the switching power supply does not require the bulky transformer of the traditional linear power supply, but the Soulution design is equipped with an amazing capacity to cope with the instantaneous high current output. Third, the 530 has set up a total of nine independent power supplies, six sets of high-speed voltage-stabilized lines, which are supplied to the pre-stage, post-stage, digital logic control and other lines to completely avoid mutual interference, so the volume can not be reduced. The 530's distortion is extremely low, the bandwidth is extremely wide, the output impedance is extremely low, the slew rate is extremely high, and the damping factor is more than 10,000. The original webpage also publishes a lot of test data, which is easy to think that Soulution is a special Manufacturers who value test specifications. But in fact, this is just one of the aspects of Soulution . Although they emphasize testing, they also pay attention to listening. For the use of negative feedback, most amplifier designers now have reservations about negative feedback. They think that using more will cause phase distortion and slow down the transient response. Soulution is one of the few exceptions. Not only the depth of local negative feedback, but also a 0.1dB micro-integrated negative feedback. Why? Because they actually listened to the comparison, adding a small overall negative feedback sound better, so they decided to adopt, No fear of the general people's dislike of negative feedback. How to solve the negative impact of negative feedback? Cyrill said that they use a negative feedback line with ultra-fast response speed, the bandwidth is up to 1MHz. In this situation, the human ear can no longer distinguish the negative effects of negative feedback, but However, it can obviously feel the many advantages brought by negative feedback, including better control, wider bandwidth, more stable lines, etc. The design difficulty of this ultra-high-speed and ultra-wideband line is actually very high, not only the components must Extremely precise, the direction of the line must also be very particular, the components used by Soulution are special orders, the cost can be imagined. Interestingly, Swiss audio manufacturers seem to be particularly good at this line, Goldmund is another An example of a name. It is worth mentioning that Cyrill does not insist that the voice they call is the only correct voice. He believes that many people may like the sound of not giving the overall negative feedback, because it is more like the characteristics of the tube machine, the sound is softer. But the control is poor and the impact is weak. But this is not the sound they want. So in the end they decided not to cater to the preferences of most people, but to call out the sound style belonging to Soulution . At the moment when homogeneity is getting higher and higher, Soulution 's attitude of choosing good and stubborn, not subject to mainstream views, is really rewarding. Another design feature of Soulution is the extensive use of thick copper to replace the wiring inside the machine, not only used to distribute power, but also to transmit signals. There are three benefits: 1. The thickness of the thick copper piece is lower than the wiring inside the machine, which helps to increase the damping factor and enhance the control of the amplifier to the horn. 2. Thick copper has better current withstand capability and is more in line with Soulution 's high current output characteristics. 3. Copper is the best thermal conductor to help dissipate heat from components. Does this design have any shortcomings? Cyrill admits that the noise shielding capability of thick copper may not be as good as the general wiring, but the advantages of hearing are far greater than this small defect, so they decided to adopt it. This is the Soulution sense. Another proof that takes precedence over test specifications. 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