Bravo-AUDIO-V2-Valve-Class-A-Tube-Headphone-Amplifier-pre-12AU7-TUBE
In Put Power: DC24V
Input Sensitivity: 100mV
Input Impedance: 100KOhm
Out-Put Impedance: 20~600 Ohm
Gain: 30dB
Frequency response: 10Hz-60KHz +/- 0.25dB
Signal/Noise Ratio: >90dB
Dynamic range: 84.6dBA(300 ohm) 89.8dBA(33 ohm)
THD: 0.016%(300 ohm) 0.45%(33 ohm)
IMD + Noise: 0.045(300 ohm) 0.42(33ohm)
Dimension:79mm (D) X 79mm (W) X 44mm (H)not measure to tube and transformer
Shipping Weight: 600 g