xDuoo TA-26

xDuoo TA-26 is a headphone tube amplifier using 6N8P and 6N5P tubes. It is priced at $319.

xDuoo XD-05 Plus

The xDuoo XD-05 Plus is a mobile DAC/Amp that can work separately as each option and provides 1W of pure power through the headphone output. It is priced at 289$.