Nobsound Little Bear P10 HiFi MOSFET Class A 12AU7 Tube Multi-Hybrid Headphone Amplifier Stereo Audio Preamplifier Preamp

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About Nobsound Little Bear P10 HiFi MOSFET Class A 12AU7

Replaceable Tube Modules: Switch between 12 series or 6 series: ① 6 series available: 6DJ8/6922/6N11/E88CC/6H23... ② 12 series available: 12AU7/ECC8/5814/6189/B329/CV4003/ECC802S... Parameters: Working voltage: DC24V, 1.5A at least Input sensitivity: 50mV Gain: 32dB Audio input: 3.5mm audio jack & Stereo L/R RCA Audio output: 3.5mm headphone & 6.35mm headphone & Stereo L/R RCA Input Impedance: 100KΩ Output Impedance: 20Ω~600Ω Frequency response: 10Hz-60KHz (±0.25dB) Signal/Noise Ratio: >90dB Dimension: W102× D102 × H37.5 mm (4.02 × 4.02 × 1.48 in) Net Weight: 310g (0.68lb) Notice: We recommend to have it rest after 2-3 hours work for its large power that not suitable for a long time work. Please keep P10 away from some high-power sources of interference, such as monitors,audio speakers, mobile phones, WIFI and other electrical appliances. P10 power switch Reset: if P10 power switch is locked and can not be shut OFF or turned ON, you need to reset it by the following steps: ① Deeply press and hold the switch ② Turn it to left and right for 2 or 3 times ③ Release it, the switch will be reset ④ If not, you can repeat that method for 2-3 times again 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