1, Immersion Gold PCB, ideal signal transmission.
2, Input/output interface using Gold parts.(RCA adapter.tube socket all is gold).
3, HiFi Nichicon filter capacitor * 4.
4, With warm sound for your earphone. i think you will certainly like it.
5, Tube model: 6J1(made in china, brand is: Beijing, you also can replace to other tube. like:5654,6 AK5, EF95 tube. you can direct replace it).
Model number: Little bear P2-1.
input voltage: AC12V.
frequency response:20 HZ - 20 KHZ.
input level of sensitivity 300 mv.
SNR: 96 db.
Total harmonic distortion
there are 6.35 and 3.5,Both interface are in parallel connect.so. if you want to get best sound. don't plug 2 headphones in them at same time.
Mini Cute alluminum chassis
Package include power adapter
support power to 12~200ohm headphone
Actually it's tube buffer + amplifier work model.both function is alone, the music input to 6J1 tube buffer preamp and output to daul NE5532(TI)(each chip for each channel) amplifier part, after music output to your headphone. else ,In back of the P2-1. you will find a OUT interface. that the 6J1 buffer preamp pure output.you can use it as a buffer preamp for your other power amplifier, that's interface music isn't through the headphone amplifier part. it's very helpful for install it in your home audio system too. get more warm sound