Little Bear P10 vacumm 12AU7/6922 Valve Tube Headphone Amplifier preamplifier

Working voltage: DC24V, 1.5A at least 

Input sensitivity: 50mV; 

Gain: 32dB; 

Input Impedance: 100KΩ 

Frequency response: 10Hz-60KHz (0.25dB) 

Audio input: 3.5mm audio jack & Stereo L/R RCA 

Audio output: 3.5mm headphone & 6.35mm headphone & Stereo L/R RCA 

Output Impedance: 20Ω~600Ω; 

Signal/Noise Ratio: >90dB 

Dimension: W102- D102 - H37.5 mm (4.02 - 4.02 - 1.48 in) Net Weight: 310g (0.68lb)

NOTICE

TIP 1 We recommend to have it rest after 2-3 hours work for its large power. Please keep P10 away from some interference sources like monitors, audio speakers, mobile phones, Wi-Fi etc. 

TIP 2 RCA output: it will automatically switch to RCA output after 6.35 headset being pulled out. Normal boot requires about 10 seconds then the P10 will have a normal sound output. 

Packing List: 

1- Headphone Amp (assembled) 

1- Shuguang 12AU7 Tube 

1- Power Supply