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6J1 Tube Amplifier Preamp Board Dual Channel Class A Volume Control Tone Preamplifier Boards with Cryst Finish Board

6J1 Tube Amplifier Preamp Board Dual Channel Class A Volume Control Tone Preamplifier Boards with Cryst Finish Board

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|Item#: V8211

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andriod ios
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This preamp tube amplifier uses A1013, C2383 triode power amplification, with the electronic tube 6J1 can achieve sound detailed, warm, mellow, strong bass full strength, rich midrange, soft and soft treble.

Features:
This product uses A-C 12 voltage power, the output audio signal can be directly used for various post-level digital power amplifier board.
The tube buffer is amplified by about 2 times, and is connected between the sound source and the post-stage power amplifier.
It can effectively filter the digital taste, making the human voice become more realistic, with a timbre and a strong daring.
Left and right channel input: for audio signal input, you can connect to mobile phone, MP3, mp4 and other music players.
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 bizarre music enjoyment for the later stage power amplifier.

Specifications:
Material: plastics+metal
Output impedance: 4-8Ω
Item size: 110 * 95 * 40mm / 4.3 * 3.7 * 1.6in
Item weight: 142g / 5.0ounce
Package size: 150 * 130 * 80mm / 5.9 * 5.1 * 3.1in
Package weight: 169g / 6.0ounce

Note:
Power switch/volume knob: In the closed state, rotate the rotation clockwise to hear a “tick” sound, the indicator light is on, indicating that the power has been turned on, then the volume is the smallest, then continue to rotate clockwise is to increase 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.
A-C 12 voltage input:  use D-C5. 5 * 2. 1 socket, connect A-C 12 voltage transformer input, remember: can not D-C power input, otherwise it does not work.
This item is preamplifier, it's m-ust connect to audio amplifier board or active speaker.

Packing List:
1 * Preamp Board
2 * 6J1 Tube

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