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Asus Xonar Essence One – External DAC and Headphone Amplifier in Studio Quality
The Asus Xonar Essence One is an external digital-to-analog converter (DAC) with an integrated headphone amplifier, designed for the highest standards of sound quality and precision.
It is aimed at audiophiles, musicians, and studio users who value a pure and dynamic reproduction of their digital music sources.
Technical Specifications
- DAC Chip: Burr-Brown PCM1795
- Sampling Rates: up to 24-bit / 192 kHz (USB, coaxial, optical)
- Upsampling: 8x up to 352.8 kHz / 384 kHz
- THD+N: < 0.000316%
- Signal-to-Noise Ratio (SNR): up to 120 dB
- Inputs: USB, coaxial (S/PDIF), optical (Toslink)
- Outputs: RCA, balanced XLR, 6.3 mm headphone output
- Headphone Amplifier: High-power design, supports headphones up to 600 Ohms
- Enclosure: Solid aluminum housing, vibration-resistant
- Architecture: Fully symmetrical design with separate power supply for analog and digital sections
- Compatibility: Fully compatible with Windows, macOS, and Linux
Sound & Performance
The Essence One delivers linear, detailed sound reproduction with excellent spatial imaging and wide dynamic range.
Its symmetrical circuitry and premium components ensure a clean, distortion-free sound – ideal for high-end headphones and studio monitors.
The built-in 8x upsampling technology provides an exceptionally natural and transparent sound presentation.
The high-power headphone amplifier easily drives high-impedance headphones up to 600 Ohms, delivering precise, dynamic, and balanced playback.
The bit-perfect mode reproduces digital audio exactly as it was recorded – without any alteration.
In real-world use, the Essence One demonstrates outstanding versatility:
It works flawlessly under Linux and integrates seamlessly with high-resolution audio sources and modern portable players, making it an ideal bridge between digital playback and classic Hi-Fi systems.
Special Features
- Quartz-accurate signal processing for maximum precision
- Swappable Op-Amps for customizable sound tuning
- Symmetrical circuit design for minimal distortion and optimal stereo imaging
- Compatible with Windows, macOS, and Linux
- Solid aluminum chassis with excellent shielding
- Highly versatile – works perfectly with modern high-resolution players
Applications
- High-end DAC between PC, streamer, high-resolution player, or CD player and amplifier
- Powerful headphone amplifier for studio and high-end headphones up to 600 Ohms
- Precision converter for music production, mastering, and audiophile playback
- Perfect addition to Linux-based Hi-Fi systems or portable high-resolution setups
Conclusion
The Asus Xonar Essence One combines audiophile-grade performance, robust build quality, and professional connectivity in a refined chassis.
Whether used as a DAC in a Hi-Fi system or as a studio-grade headphone amplifier, the Essence One delivers authentic, detailed sound reproduction – even when paired with high-resolution audio sources and modern portable players.
The A1 arrived safely with me. The device was really well packaged by you and is visually in perfect condition for its age! In the meantime I have carried out some listening tests (with my rather modest components: Nuber nuWave floorstanding speakers, Dual 704 with Vinylmaster Silver and Technics Sl 1500 with Goldring IGC 910). In comparison, my Yamaha A-960, which has also been overhauled, can't keep up. The A1 reproduces the sounds extremely cleanly and precisely with great depth and pleasant dynamics, really great sound! More quality than I expected.
Yamaha CX-800 preamplifier
Hello Marc, the delivery arrived safely, I am very satisfied, thank you very much, I will definitely come back and would like to choose and buy something from you.
Got a Braun CC4 delivered today! Very good packaging !!! Top device and fair price. I bought a Braun PA4/2 about a year ago and I'm still very happy with it. I can only recommend this tube to anyone looking for a good nostalgic device !!!
The parcel arrived safely today. The packaging itself was simply second to none and the turntable is in excellent condition as described. I set it up quickly, the cartridge alignment was perfect, everything seems to work flawlessly. In short, I'm really impressed so far! I hope to play some more records this weekend and report back. Thank you very much! Best regards, Marek
PS: Thanks also for the instructions and the gift!
Hello. The nad tuner arrived today, big praise for the fast delivery, excellent packaging, really professional!!!! The tuner is really in top condition. Excellently received, great! Thank you very much. Greetings from Zagreb!