Valve Preamp kit

Features:

• 1. AC 12V input: use DC5.5*2.1 socket or ac 12V transformer. If you want to use AC 12V transformer with no plug, the power cord needs to be soldered to the circuit board.
• 2. Audio input: for input of audio signals, it can be connected to the mobile phone, computer, MP3, MP4, and other music players.
• 3. Audio channel output: for output of audio signal, it can connect to the audio signal input terminal of the amplifier.
• 4. Power switch/volume knob.

Specifications:

• Model: 6j1 valve (equivalents are 6AK5, 6AU6, 5654, etc.)
• Channels: 2 / Stereo
• Operating voltage: AC 12V 0.8A or above
• Power interface: 5.5 x 2.5 plug
• Board size: 77 x 75 x 57mm (WDH)
• Unit weight: 87g (with copper pillar)
• Buffer function: Add between a digital audio source such as CD / VCD / DVD / MP3 / IPHONE / ipad / MID / mobile phone and other digital audio and power amplifier / subwoofer / active speakers