Loxjie P20 Full Balance Tube Headphone Power Amplifier IntroductionP20 is Loxjie's first full balance tube amplifier. It use the military grade 6N3 tube,Plus the well-designed and calibrated amplifier circuit! Let the amplifier have lower distortion under the premise of ensuring"Tube Style"! And the P20 also has true balanced inputs and outputs!This can maximize the performance of the headphones! Characteristic1. Military grade 6N3 electronic tubes and carefully tuned circuits. 2. Fully balanced headphone amplifier,including balanced input interface. 3. Powerful drive circuit up to 600mW at 64Ω . 4. Hi-End volume control NJW1195 produced by JRC Japan. 5. Use relay for mute control. 6. Well designed power supply circuit and high quality power adapter. 7. Aluminum CNC,very fine workmanship. 8. Humanized operation with memory function. Function and operation instructionsFunction ButtonLong press on/off,short press to switch menus. Rotate CW or CCW to switch menu contents. MenuShort press the function key...