300B Push 845 Bluetooth high power class A HIFI tube amplifier 6SN7 300B 845 5∪4G tube amp Built in decoding 28W*2

300B Push 845 high power class A HIFI  tube amplifier 6SN7 300B 845 5∪4G tube amp Built in decoding 28W*2 

model: G-845 
Output power: 28W+28W class A) 
Bile duct configuration: Noble 6SN7-SE * 2 
Noble 300B-PT * 2 
Noble 845-PT * 2 
Noble 5 ∪ 4G * 1 
Input channel: 
Wireless Bluetooth/lossless ∪ disk/2-channel RCA 
Output impedance:< 
4Ω-8Q 
Input impedance: 100K 
Signal to noise ratio: 90DB 
Power supply: 500W 
Whole machine weight: 30KG 
Power supply voltage:~AC230V (± 5%)（ 
(50HZ) 
Gallbladder machine size: 45 × 39 × 29 (length * width * height CM)