Germany * EPRO preamplifier in stock

German originalImported EPROPre processor in stock

Both the preamplifier and the preamplifier have an output and output first * first * first * first * first * first * first * impedance specification. The output impedance represents the internal resistance of the signal output of the preamplifier or the preamplifier, measured in ohms. The lower the output impedance, the lower the internal resistance and stronger the driving capability of the amplifier. Similarly, the impedance encountered by the preamplifier or preamplifier when the signal first enters the device is the impedance in ohms. The higher the impedance, the easier it is to push the front-end equipment and reduce the impact of load effects. Each amplifier has an input impedance and output impedance. Generally speaking, the higher the input impedance Ri, the better, and the lower the output impedance Ro, the better. The ideal impedance matching is that the lower the output impedance of the upstream stage, the better, and the higher the input impedance of the downstream amplifier, the better, in order to avoid the influence of load effects.
Usually, the output of the post amplifier first enters the impedance, which is more than ten times higher than the output impedance of the pre amplifier, in order to maximize the power of the pre amplifier. This is similar to the principle of a locomotive pulling a carriage. The same carriage can be pulled by locomotives of different horsepower, and the degree of ease naturally varies. The greater the horsepower (lower output impedance) of the locomotive, the lighter the weight (output * head * head * head * first entry impedance) of the carriage, and it is naturally relaxed and enjoyable.
In another post about how to choose a preamplifier, the L version said, "In this era, personality is the key!" Indeed, the most important factor in choosing a preamplifier is its personality and temperament.
The frequency response range of the preamplifier, which is highly valued, must be wide (above 5-35K Hz). The higher the frequency, the richer the harmonics, overtones, and residual sounds. If the high frequency is not outstanding, no matter how good the mid low frequency is, I do not accept it, as it affects the listening experience. A good preamplifier first needs to achieve balance in the entire sound range, with dynamics not too large or too small, and excellent sound resolution. Only then can the sound be transparent, the structure of the sound field be natural, the instrument isolation be exquisite, and the size be appropriate.

Germany * EPRO preamplifier in stock

When asked about the issues that need to be considered when choosing a preamplifier, I suddenly remembered that the three preamplifiers I owned were all purchased by me when I couldn't make a choice and chose one that met my own ideas (of course, not all three preamplifiers were purchased at the same time). Since I am so stupid, do I still have the qualifications to continue writing this article?
To achieve a rich sound, it is difficult to adjust the mid low and low frequencies. How to adjust them and what materials to use depend on your personal efforts. My last resort back then was to purchase several preamplifiers (Restek's Vector, which I liked for its wide frequency domain, strong explanatory power, and serious, clear, and detailed playback sound, I called it 'Yanshou'); Another movie called "Huan Fei" is Audiolab's Klar, which plays back rich and delicate sound, with flesh and blood, smooth and not leaving any residue. I like Yang Yuhuan more than Zhao Feiyan, just like Tang Minghuang, especially in the cold winter weather, it brings me warmth; Unlike Zhao Feiyan who is as cold as ice, I only use her to play when my mood is hot. The sound played back often helps me calm down and has a special effect of calming the mind and reducing dryness. Furthermore, I also have an ARC SP 11 Mk II, which is specially designed for listening to human voices. Due to the complicated connections, it is not as convenient as my "Yanshou" and "Huanfei" models, which have one XLR connector and the other RCA connector for inputting the first * first * first * first * first * into my Restek Exponent amplifier. I only need to change Bal to Unbal on the Exponent backplane button, and then I can choose between "Yanshou" and "Huanfei".
This example illustrates that the preference of the preamplifier for the listener is directly related. I listen to a wide variety of music genres and properties, so I used multiple ones. For other audiophiles, of course, they have to choose according to the type of music they are listening to. For those who enjoy classical music, of course, the frequency response range must be wide (5-35K Hz or above); The requirements for sound pressure and frequency domain, which are mainly focused on listening to human voices, can be reduced a bit
In short, the key is to listen more and combine it with the selected speakers. Only in this way can the replayed sound be the sound you want to hear in the future.
If the preamplifier of audio equipment can accurately reproduce factors such as speed, transients, dynamics, and sound pressure, one can calmly sit down and listen to music, and first enter the realm of beautiful music, appreciate the connotation of music and be deeply moved.

German originalImported EPROPre processor in stock

Friends who play HiFi often focus on adjusting certain aspects and neglect the influence of other factors. In addition to matching equipment appropriately, it is also necessary to have a good listening environment, carefully adjust and use it, in order to achieve the goal, which cannot be achieved overnight. I believe most audiophiles understand these principles, but there are not many friends who can consider playing comprehensively. In terms of equipment usage alone, many audiophiles are not very familiar with the performance of their equipment and often attribute the poor sound to certain devices due to improper use. As a result, 'playing' HiFi turned into constantly 'switching' HiFi. In the small town where I live, there is a friend who has a fever. He has only been playing audio for five or six years and has changed no less than six systems. I'm talking about 'sets', I'm talking about the whole set! Can you guess how he is playing with the preamplifier now? He is now using the CD Wadia 861 as his source of information (he once played an LP turntable six months ago, but couldn't produce good sound and transferred or returned it to the agent). This machine can now be directly connected to the amplifier because it has already been set up with a digital volume remote control. But this audiophile probably admired the reputation or found the Wadia 861 digital sound too heavy. In addition, he connected an ARC Reference II preamplifier and then connected it to a Pass power amplifier with an output of 600W on each side, driving a pair of Wilson WATT/Puppy 6. He thought that this would truly mute the sound!