3 audio inputs (Bluetooth/USB/RCA) and 2 outputs (RCA / 3.5mm headphones), P1 can be used as HiFi vacuum tube preamp & USB DAC & headphone amplifier.
Bluetooth 5.0 (QCC3008) supports lossless transmission of APT-X, APT-X LL.PC-USB (CM6642) supports 24bit 192KHz, compatible with Windows / Mac / Linux systems.
Compatible with most stereo home audio system devices such as iPods, smartphones, MP3 players, TVs, Blu-ray players, ecodes and CD players
Adopts two NE5532 classic 47 headphone amplifier architecture that can drive 32-300 ohm headphones
Specially designed pass-through switch to switch on and off of tone control.Convenient for you to enjoy the original sound, you can adjust the sound more detailed with the treble and bass control knob.
The bypass switch is specially designed to turn on and off tone control, which is very convenient for you to enjoy the original sound with treble and bass control knobs and get more delicate sound.
Replaceable vacuum tube: 6J1, 6J4, GE5654, 6AK5, 6*1N