German EPRO preamplifier products are in good stock

GermanyEPRO preamplifierGood product in stock

There is a lot of nonsense about the preamplifier, so now is the time to clarify it. In an ideal listening environment, a signal path design with fewer components may result in a more realistic amplifier. This is the simple is the best theory.
For every additional component used, there is an increase in distortion, and switches and volume controls are the main culprits. But many good recordings can achieve this, and it requires a helping hand in the preceding tone to eliminate the problem of sharp and tiring sounds during playback.
In this way, a situation arises where tone control provides precise and sensitive operation (in fact, many high-level preamplifiers have replaced commonly used potentiometers with step-by-step resistor selectors). When trying out an amplifier, why not give it a try: simply use the bass and treble knobs that come with it to control the volume, and you will hear the corresponding difference. You should have relatively small changes. This phenomenon not only occurs when listening to rock music or streaming music, but also when listening to classical music. Even friends who listen to classical music often want to find a knob that gradually decreases in high notes with their left hand down, taming the natural top of recording.
The volume controller has tried its best but still cannot make the amplifier output louder - making the low-frequency unit of the bookshelf speaker sound like the monster Cerwin Vega. Please remember the additional distortion we mentioned? In order to have a great time at the dance party, I turned the knob to the position where both the bass and treble were raised. The entire sound wave increased, but the distortion had already begun to blow the horn.

German EPRO preamplifier products are in good stock

Both worlds have a preamplifier with good volume control, direct audio output, or a "volume evacuation" button that can be bypassed when needed. But one thing to note is that purists may even insist that the simpler the better. The output of the preamplifier and the output of the preamplifier, as well as the output of the preamplifier and the preamplifier, first enter impedance matching. Both the preamplifier and the preamplifier have the specification of output and output of the preamplifier. 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.

GermanyEPRO preamplifierGood product in stock

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.
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.