2023 new design Bluetooth 5.0 HiFi Vacuum Tube Power Amplifier Home Theater Stereo 500W AMP Tube Amplifier with karaoke

Product Description
Power consuption : 500W
Bluetooth 5.0
Optical/Coaxial/CD/DVD/USB input
Built-in DSP karaoke Echo
USB Support MP3,WMA,WAV,APE,FLAC decode
output resistance  : 4 Ω, 8 Ω
Frequency response  :20 Hz ~ 20kHz
Singnal to noise ratio : 90dB
Rated Power : 120W + 120W ( RMS )
Harmonic distortion  :<0. 1% ( 1kHz )
Input sensitivity  :50 0mV
input resistance  : 100K Ω
output resistance  : 4 Ω  8 Ω
Blance:< 0.5db
Net weight :5.5 kg 
Tube :6F1 × 4
Machine volume ( W × D × H ):  270 x 275 x 138mm
Power voltage  :~ 230V/240V ± 5% ( 50Hz )