AUNE T1 24bit/96kHz TUBE DRIVEN USB DAC DECORDER HEADPHONE AMP !! 6922 UPGRADED TUBE The Aune T1 is a visually stunning, and well built 24-bit USB DAC and headphone amp capable of driving both demanding and low impedance headphones. High quality Tube USB Sound Card and amp. Adjustable Headphone Amp output Gain - choosing between 0dB, 10dB and 16dB Powerful and clear sounding that only tube warmth can provide. It's a beautifully built piece of kit and is so simple to operate, just plug it in, connect the USB cable to your computer and, voila!, glorious music :)