finished amp and Bluetooth version can be used directly. the DIY kit need you soldering it by Youself， make order pls pay attention，thanks
Bolster model: 6P3P
pre tube Shuguang 6G2P
Rectifier: Shuguang 5Z4PA
Rear Power Tube: USSR 6N3/ Shuguang 6P3
Output power: 2x7.5W
Load impedance: 4ohm-8ohm
Signal to noise ratio: 90DB
Input impedance: 100K ohm
Total harmonic distortion: 1.5%
Power consumption of the whole machine: ≤80W
Operating voltage: 220V、110V
Frequency response range: 20Hz-20KHz.
Weight: 9KG
measure：34cm*26cm*15cm
Audio input: Bluetooth, USB flash drive, FM radio, CD/ computer input.
The finished amplifier with BT version :
The finished amplifier no BT version :
the follow is DIY kit，
