Music lovers or watching movies onBig screen home theater, no doubt interested in getting high-quality sound. Therefore, it is important to choose which preamplifier, so that the result will not disappoint you, what characteristics to pay attention to when choosing an audio device.
When listening to music on a CD player tooAn amplifier is needed, because the signal is very weak. To help speakers connected amplifier. It is capable of switching and receiving audio, raising it to the desired volume.
Amplifiers are divided into three types:preliminary, integrated and power amplifiers. Integral, which combines all in one package, is currently the most common. A more expensive and high-quality circuit is considered to be a separate device, consisting of a power amplifier and a preamplifier. Amplifiers are lamp, transistor.
It is a preliminary version that is able to give a true music lover the sound that he would like to hear - more pure and high-quality, truly alive.
Choosing from the category of expensive multi-channeldigital systems, you can stay on the AV-processor. And making a choice among amplifiers, it is better to give preference to the preamplifier, which is the best investment of money. The processor is able to properly adjust the parameters and surround sound processing. As a result, you can collect the following audio system, including the source (for example, a disc player), pre-amplifier, amplifier and acoustics. The source can be a turntable, cassette deck and other options. In the role of the preamp, you can use an AV processor. Preamplifiers are more effective in conjunction with digital audio systems in which they pair up with power amplifiers. This allows the owner of professional acoustics to avoid recording music while playing flaws and to neutralize the frequency resonances inherent in the room.
In order for the preamplifier for the subwoofer to produce the desired sound quality, it is necessary to set the center frequency closer to one kilohertz on its equalizer, and the MF should be set lower by half a decibel.
To adjust the sound on the preampoutput its output with the maximum, and the input at the power amplifier with the minimum level. The sound will be better if the output impedance of the preamp is lower than the input on the power amplifier. Well combined tube stereo amplifiers and transistor power amplifiers. You can connect a preliminary version to the active speakers, but good sound can only be obtained when using high-quality studio models.
As a rule, the preamplifier plays the rolecontrol controller, which allows you to adjust the volume and timbre of the audio system, switches the sound sources and prepares a signal for the power amplifier. Unlike the latter, the preamplifier is placed in sight.
If you choose a high quality previewAmplifier, this is a “High End” class of equipment, for example, “Evolution”, created by German designers. It achieves maximum neutrality by processing the input audio signal. The device has a perfect elemental base, a short path of signals and a stabilized power source. Preamplifier has a mono output to the subwoofer with satellite consoles, it can be integrated tuner and universal phono-preamp. Undoubtedly, such a device is able to deliver a lot of pleasure to real music fans.
