Specifications:

Power Output: 18 watts RMS x 2 into 4 ohms
Total Harmonic Distortion: <1% @ 18W per channel
Minimum Speaker Impedance: 4 ohm
Frequency Response: 20-20,000 Hz, ±2 dB
Channel Separation: 65 dB
Dynamic Range: >80 dB
Signal-to-Noise Ratio: >80 dB
Preamplifier Tube: 6F2 x 2
Headphone Amp Output:  32 ohms; 20 mW
(maximum @ 1 kHz, <1% THD+N)
Bluetooth Version: 5.0
Input Impedance: 47k ohms (minimum)
Input Sensitivity: 300 mV
Switching Voltage: 100-240V
Product dimension:L234*W158*H97(MM)
NW:1.2KG
GW:1.6KG
Master-carton dimension(4 Stes):L440*W295*H350(MM)
Master-carton GW(4 Stes):7.5KG