xDuoo MT-604 Four 6J1 Tubes Pre-amp Class A Balanced Tube Headphone Amplifier

Power Supply: DC12V/2A
Gain: +15dB
Output Power: 2000mw( 1KHz,32Ωload )
Size :17*10* 6cm
Dynamic Range: 85dBA(32Ohm)
Weight: 0.55kg
Frequency Response: 10Hz~60KHz (±0.5dB)
S/N: 115dB
Suitable Headphone Impedance: 16Ω ~ 600Ω
THD+N :≤0.01 %( 1KHz,32Ωload )