MD4 + XO Bundle

DUAL ESS SABRE ES9219C DAC & Independent Crystal Oscillators

Get double the audio performance and the most accurate clocking for both DACs, through the synergy of the Dual ESS SABRE ES9219C DAC chips, and high-precision independent crystal oscillator, for the purest audio experience, and reproduce real music with unprecedented accuracy! Outstanding DAC parameters: 32bit/384kHz PCM, DSD256, +121dB DNR, -114dB THD+N, ultra-low power consumption, high integration, and substantially better performance than previous iterations.Remarks: The above official data is provided by ESS company.

MQA 16X

MQA is an award-winning British technology that delivers the sound of the original master recording. The master MQA file is fully authenticated and is small enough to stream or download.
MQA audio technology is supported by HIDIZS XO portable dongle DAC AMP, able to fully 'unfold' MQA files (16X) to deliver outstanding sound quality.
*Music services that support MQA should be installed on playback devices (e.g. HiBy Music, TIDAL) to realize 16X unfolding of MQA audio.

Stylish RGB LED Light - HIDIZS Patented Innovation

The front of the XO MQA Dongle has a unique X-shaped button for independent control of the RGB LED lights. (15+ lighting effects)
You will be attracted by the light effects of the XO MQA Dongle.

Physical Button for Filter Mode Switch

There is also a dedicated O-shaped button on the XO MQA Dongle for filter mode switch. No need to update firmware or use your phone, just one button to get 2 different sound styles. Plug and play for maximum simplicity and convenience.

XO MQA Dongle - Like a work of art

The XO MQA Dongle uses a high-density aluminum alloy shell, which is integrally formed with a typical 5-axis CNC high process. For the first time, the etched technology is used on both sides of the XO MQA Dongle. With HIDIZS initials - "H" as the design element, the micron-level complex and meticulous metal processing is carried out. Etch a number of "H", end to end, in the shape of a net hollow. The XO MQA Dongle has built-in RGB LED light tubes, and the light changes and staggers, scattered from the countless "H".

Single-ended 3.5mm + Balanced 2.5mm

The XO MQA Dongle is only the size of a USB and weighs only 11 grams. Contains two outputs, enough to drive mobile phones, iPads, and PCs. The output power is strong but not excessive, single-ended 78mW+78mW@32Ω / balanced 195mW+195mW@32Ω. The XO MQA Dongle perfectly balances sound quality and battery life.

The XO MQA Dongle not only powers 8-250Ω headphones, but it also performs well when paired with 300Ω high-impedance headphones!
Portable and powerful enough to satisfy demanding users, the XO MQA Dongle is a must-have for true music lovers worldwide!

Sampling Rate Indicator Light

The light of the O-shaped button of the XO MQA Dongle shows the sampling rate. According to the color of the light, the sampling rate of the currently playing song can be known.

HiBy Music APP

HIDIZS XO Single-ended & Balanced MQA Dongle supports industry-leading professional app - HiBy Music.

Dual Certifications: Hi-Res Audio & MQA Certified

Hi-Res Audio (HRA), is a high-quality audio products certification by JAS and CEA.
MQA (Master Quality Authenticated) is an award-winning British technology that delivers the sound of the original master recording.