SOTAMIA 6J1 Tube Amplifier Preamp Board Hifi Stereo Dual Channel Class A Tone Volume Control Preamplifier AMP With Crystal Case |

Product description:   Product Type: Electronic amplifier preamplifier   Product model: XH-A201   Number of channels: two channels   Output impedance: 4-8OHM   Power supply: AC12V   Size: 81*81*43MM   Net weight: 170G     Note:   The product cannot be directly DC power input, otherwise it will not work or damage the machine.   The product is a preamplifier, not an amplifier, and needs to be connected to an amplifier or an active speaker.   The tube buffer is amplified by about 2 times, and is connected between the sound source and the power amplifier at the back level. It can effectively filter the digital taste, making the human voice become more realistic, with a timbre and a strong daring.   1, AC 12V input: use DC5.5*2. 1 socket, connect 12V transformer input, remember: can not DC power input, otherwise it will not work.   2, left and right channel input: for audio signal input, can be connected to mobile phone computers, MP3, mp4 and other music players.   3, left and right channel output: for the audio signal output terminal, can be connected to the amplifier, the audio signal input end of the power amplifier board, to provide a daring music enjoyment for the later stage power amplifier!   4, power switch / volume knob: in the closed state, rotate the clockwise rotation to hear "tick, the indicator lights up, indicating that the power has been turned on, then the volume is the smallest, then continue to rotate clockwise is to increase the volume Turn the knob counterclockwise. At the beginning, the volume is lowered. When the volume is turned off to the minimum, if you continue to rotate until “tick”, the power is turned off and the power indicator is off.     Package included: 1Pcs