Product Name:

NEW Design Recording LM317 7806 Mic Amplifier Circuit Board 6DJ8/6922/ECC88 Transistor Electronic Tube Niff Microphone Amplifier

Component selection:

The electronic tube adopts the model 6DJ8/6922/ECC88, high frequency electronic tube with low noise and high mutual conductance. The DI channel uses high-impedance FETs for amplification, and the coupling capacitors are selected from Germany Weimar and Japanese Ruby. The power supply adopts LM317, 7806, etc. as regulated rectifier power supply

Without the shell, there will be no noise in the full naked running, but it is easy to be interfered by the outside world, such as mobile phones.

The size of the circuit board is 13*20CM, composed of more than two hundred components. The component parameters are printed on the circuit board and assembled according to the parameters. Four transistor models have been worn out. It is best to install the resistance after measuring with a multimeter. The electronic tube has been tested before being shipped. This product does not support unreasonable returns

Feature:

This microphone amplifier adopts the combination of Electron tube and transistor to amplify. The advantages are that the electron tube can increase the warmth of the sound without losing the low-frequency power of the transistor. At the same time, the high-frequency performance is harmonious, not easy to be distorted, and extremely low noise floor, Ordinary tube amplifiers are all amplified by the combination of operational amplifier chips and tubes, and good ones are usually amplified by a combination of transistors and tubes. Its disadvantages are large volume, many sub-three-dimensional components, and high cost.

Our special design for the switch: Mute switch

Why you need Mic Amplifier:

Many people think that a microphone amplifier is a kind of professional equipment that amplifies the sound of a microphone.In fact, this is not the main function of the microphone amplifier. The main function of the microphone amplifier is used to modify and improve the sound transmitted from the microphone, to make the sound more beautiful. A good amplifier will makes the low frequency more powerful and cohesive, and can make the original high frequency sharp sound becomes soft, harmonious and sweet, and the middle frequency becomes rounded; the amplifier can make some microphones that are not resistant to sound pressure become more resistant to loud sound pressure.

Amplifier is a good tool to add luster to the sound of the microphone, and it is an indispensable
protagonist in a professional recording studio. Conversely, a poor speaker amplifier will amplify the
volume, but it will make the original normal high-pitched sound sharp, and the sound will lose its
texture, which is worse than the broken sound with a coarse tone.

Therefore, it is very necessary to have a good speech amplifier in professional recording.

The importance of the amplifier is no less than that of the microphone and the sound card. If a
microphone is worth 3000usd to 20000usd, then a good speaker amplifier also has this value.

The importance of the microphone is same as amplifier.

Pls note that the Transistor WILL NOT installed for installed packing, since it need to be packed seperately to protect it.  Below picture just for your reference to install it.