The Hidizs XO is a compact and portable USB DAC-AMP designed for providing high-quality audio performance with a range of features. It utilizes dual ESS SABRE ES9219C DAC chips and high-precision independent crystal oscillators to ensure top-notch audio accuracy and clarity. With support for MQA unfolding up to 16x, it is capable of delivering the sound quality of the original master recording when used with compatible services like TIDAL and the HiBy Music app. The device supports a variety of audio formats, including DSD256 and PCM up to 32bit/384kHz, making it versatile for different listening needs. The XO is equipped with both single-ended 3.5mm and balanced 2.5mm outputs, delivering output power of 78mW at 32Ω for the 3.5mm output and 195mW at 32Ω for the 2.5mm output, catering to various headphone impedances ranging from 8 to 300Ω. The unit features an RGB LED light with 15 different lighting modes managed via an X-shaped button, while an O-shaped button allows users to switch between two sound filters without needing software updates. The construction consists of an all-aluminum alloy body that is both durable and aesthetically pleasing, designed with microns-level precision. Additionally, the device is lightweight, weighing only 11g and measuring 55x24.5x9.35mm, making it highly portable for on-the-go audiophiles. Despite some drawbacks, such as slight overheating and standard USB cable quality, the overall audio performance is characterized by clarity, detail, and a wide soundstage, making it suitable for both enjoyable listening and professional monitoring.
