Headphone Zone and Muse HiFi have launched the M3 Ultra, a portable vacuum tube DAC and headphone amplifier in India. It combines dual JAN6418 military-grade vacuum tubes with an ES9028Q2M DAC, an ES9603Q amplification stage, and a fully balanced circuit. Continue reading “Headphone Zone X Muse HiFi M3 Ultra portable tube DAC and headphone amplifier launched”