audio-sound @ hatena

An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.

(News) Hilidac Atom 2 Latest MQA Portable USB DAC/AMP Released

HIlidac Atom 2 Latest MQA Portable USB DAC/AMP Released

Hilidac Atom 2


Hilidac has announced its latest portable DAC/AMP device, the Hilidac Atom 2. It is an MQA-supported portable device available in both Type-C and Lightning connector options. Atom 2 helps you rediscover your high-quality music with its advanced ES9281AC DAC chip supporting PCM decoding up to 32-Bit/768kHz and DSD up to DSD512 natively. The Atom 2 as the name suggests has a compact build with a connector build directly into the body shell.


It is available to purchase from HiFiGO store with a price tag of 79.99$, both the connector options have the same price tag. Check out more details here.


HIlidac Atom 2



  • Premium ES9281AC
  • DAC Chip.
  • Full MQA decoding.
  • PCM up to 32-Bit/768kHz decoding.
  • DSD512 decoding.
  • Premium Crystal Oscillator.
  • Compact and lightweight.
  • Multi-color LED notification.
  • THD+N: 0.0004%.
  • Frequency response: 20Hz-40kHz.
  • SNR: 118dB.
  • Output type: 3.5mm single-ended.
  • Output power: ≥30mW(16Ω), ≥62mW(32Ω), ≥7mW(600Ω).


Full MQA Support

Hilidac Atom 2 features MQA rendered technology. It can fully decode an MQA stream or offline file with the final unfold providing the user with high-quality output. MQA(Master Quality Authenticated) is a new technology supported by the latest devices. It removes digital distortion and packs the audio streams into small files making them easy to stream. Only MQA certified devices support the full unfolding of these files. Atom 2 supports MQA files fully, the LED notification light on the device glows magenta to denote the MQA stream.


HIlidac Atom 2


Premium DAC Chip

Hilidac Atom 2 features an advanced ES9281AC audio signal decoding chip by ESS Technologies. It is their flagship-grade portable USB DAC chip that provides best-in-class audio performance for its users with an ultra-low distortion rating of just 0.0004% and a high SNR value of 118dB. With the help of a dedicated crystal oscillator and this premium DAC chip, Hilidac Atom 2 produces a unique, melodious sound output with a noise-free, clean background.


Compact & Easy To Carry

Hilidac Atom 2 as the name suggests is a very compact device with a weight of just 18grams. It is built with high-quality copper-zinc alloy material giving it a strong and sturdy build. The connector(Type-C/Lightning) is built directly into the Atom 2’s body, unlike other products in the market that have long or short connector cables to attach. It attaches easily to the source device and is very easy to carry around with its compact form factor.


HIlidac Atom 2


LED Active Bitrate Indicator

Hilidac Atom 2 features a multi-color LED light that glows in different colors as per the active file bitrate. It glows red for 44.1/48kHz, Blue for 88kHz-384kHz, Green for 705kHz-768kHz PCM bitrate, Yellow glows for DoP, White glows for DSD native, and Magenta for MQA.


HIlidac Atom 2


Pricing & Availability

Hilidac Atom 2 is available to purchase from HiFiGO store for just 79.99$. Enjoy high-quality music at the ease of your smartphone and Atom 2 for just 79.99$, order yours today!!


Audirect Atom2 MQA DSD512 32bit/768kHz HiFi Portable USB DAC Amplifier

Audirect Atom2 MQA DSD512 32bit/768kHz HiFi Portable USB DAC Amplifier