Contents hide 1 Aiyima® Bluetooth 5.0 TUBE 6N3 Headphone Preamplifier User Manual 1.1 Panel introduction 1.2 Parameter 1.3 Operation steps 1.4 PC-USB Operation instructions 1.5 Remote Instruction 1.6 Q & A 1.7 Warning ! 2 Documents / Resources 2.1 References…