IBasso PB6 MACAW Portable MP3 Player Four-Tube Dual-Mode High Driving Power Portable DAC USB Headphone Amplifier Thor JAN6418*4

The PB6 utilizes four military-grade JAN6418 directly heated pentodes vacuum tubes manufactured by Raytheon implemented in a 4-channel fully balanced amplification architecture. iBasso has designed the anode power supply to deliver 22.5V voltages,providing ample headroom and a robust dynamic performance. All vacuum tubes aremeticulously tested and matched by engineers using the APX555 audio testing equipment,ensuring channel consistency and exceptional sound quality. The fully balanced architecture imparts a rich, warm tube character, resulting in a natural listening experience.