Upgraded 6A2 Tube Audio Pre-amplifier Speaker Sound Home Theater DIY

This product is a tube pre-amplifier and needs to be connected to an active speaker or power amplifier.

It CANNOT directly connect speakers and passive speakers, headphones, phono amplifiers, cars.

Product name: Tube Pre-amplifier

Tube: 6A2（The tube is disassembled）

Power Supply: DC 12-16 V, current 1 A or more (DC12V 1.5A supply power is recommended) (plug NOT Included)

Power Socket: DC 3.5 / 5.5*2.1

Product Support Replace Tube: 6J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 6AK5 6AU6 6BA6 6BD6 EF93 6K7 GE5654 etc.

Pre-Stage Magnification: Voltage Magnification 5 times

Pre-Stage Frequency Response: 5HZ-500KHZ

Pre-level Sensitivity: 3V

Audio Input: Low-level signal input such as mobile phone, CD, computer, TV, MP3, etc.

Audio Output: connect to power amplifier or active speakers

Size: 87 * 75 MM

Note:

The tube pre-amp is a class A amplification state. It is recommended to use shielded wire for the signal wire. Common wires may cause leakage or noise.

The high-fidelity lift can be adjusted freely, and the three-gear adjustment with a wave switch.

The switch on the far left is "Hi-Fi."

Switch in the centre is "Boost 1".

The switch on the far right is "Boost 2."