***110V only/US plug***

MSRP $289.

New-in-box, never used - did not realize was 110V only (reviews stated dual-voltage), and I live in Europe; by the time I got around to unboxing, it was already too late to return.

"The xDuoo TA03S Tube Headphone Amplifier is a little tube-supported powerhouse, perfect for pushing your high-end headphones to sing with warmth and detail. The XMOS U8 processor drives the unit with plenty of headroom for processing, which is good because two separate CS4398 DAC chips support up to 32-bit, 192-kilohertz decoding. The dual-clock setup also allows for 44.1 or 48 kilohertz performance without conversion. Following that stage, the 12AU7 preamp tube is celebrated for warmth with quality, while the two 6C19 power tubes ensure that there’s plenty of power and range for even the most discerning listeners. The TA03S is all packaged in a unique chassis with the tubes exposed and a massive volume dial right on the front so you know exactly what you’re getting (and how to control it) at a glance."