Warms 6K4 Vacuum tubes

This Tubes can be replacement to 6J1, 6J2, GE5654, 6J3, 6J4, 6J5, 6*1N, 6AK5, etc.

Because the design has current passing through the tubes, the tube must be fully inserted during use!

Bluetooth and RCA audio input modes selectable

Use Bluetooth 5.0 Version,it can offers high bitrate transfer and supports AAC, SBC, APTX, APTX-LL, APTX-HD,And the RCA input (red/white) is compatible with most audio devices, such as computers,tablets, laptops, phones, TV, CD player, etc.

Dual Channel RCA output

This upgraded T2 tube preamplifier can use for most home audio amplifier(Such as A07),or connect your active speaker directly,Provides you with clean and warms sound!

Dual Channel simultaneous output,so T2 tube Preamp special is that it can output connect to 2 Amplifier devices

Nice buttons design and knobs layout

With Treble Medium Bass Control,It can achieve different sound style.This upgrade T2 is a perfect Tube preamp for your home Audio system,use it can to achieve purer music experience.

Use the NE5532 Dual Op Amp Chip

The op amp chip can be replced to double op amp chip,such as OPA2604, OPA2314, LM4562, JRC5532, etc.

Note:If there is no welding technology, it is not recommended to replace, poor welding will cause noise, which will damage the sound quality!

With DC 12V Power Adapter

This T2 Tube Preamplifier can not be used in cars,turntables ,also cannot be used directly for headphones, passive speakers,pls know it.

Note:To ensure sound quality, please use a good audio cable,Thanks!