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ASUS Launches Xonar Essence One Hi-Fi USB Digital to Analog Converter and Headphone Amplifier

Tags: ASUSTeK (TPE:2357)

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PRESS RELEASE

The world's first DAC with 8x symmetrical upsampling technology

September, 2011 - With most modern audio signals stored in digital format, the ASUS Xonar team has catered to audiophiles' needs and launched its first hi-fi USB digital-to-analog converter (DAC), the Xonar Essence One. It is an industry-leading high-end USB DAC with the world's first 8x symmetrical upsampling technology, while also featuring a 120dB signal-to-noise ratio (SNR), audiophile-class headphone AMP and eleven operational amplifier (op-amp) design for distinct tonal customization.

Hi-Fi audio achieved with the world's first 8x symmetrical upsampling technology

While common upsampling USB DACs indistinguishably transfer various audio sources to 192kHz, the Xonar Essence One upsamples 44.1/88.2/176.4kHz input to 352.8kHz and 48/96/192kHz input to 384kHz symmetrically (Note: 44.1*8=352.8kHz; 48*8=384kHz). As a result, data volume is also increased by upsampling the bit-rate to 32bit, corresponding to the original content and faithfully preserving the details of the user's music collection.

Extreme audio clarity with 120dB SNR and a dedicated power supply

The average SNR, of other USB DACs is about 110dB, but with an extremely high 120dB SNR, the Xonar Essence One provides audiophiles with clearer sounds, enabling minute sound details to be heard while significantly reducing noise levels. A dedicated power supply ensures that clean power is delivered so the sharpest sound is heard, with excellent immunity to noise from the AC line. 

Eleven swappable OP-amps for customizable tonal characters

The Xonar Essence One features a fully swappable op-amp design, unprecedented for a high-end USB DAC. An op-amp is the key part in a DAC that amplifies the analog signal and affects tonal characteristics, such as darkness or brightness of sound or the overall sound image. The Xonar Essence One allows the user to swap every op-amp that is on board, for a truly customizable sound.

More than just a USB DAC, complete Hi-Fi enjoyment

The Xonar Essence One combines three different functions, providing a complete Hi-Fi solution:

  1. USB DAC (Digital-to-Analog Convertor)

It upgrades digital music stored on your computer into clear and detailed, life-like sounds. It also features XLR and RCA connections for plugging end audio devices.

  1. Stand-alone DAC

With an S/PDIF input and input selection, the Xonar Essence One also serves as an independent DAC which can connect to standard CD/DVD players and provide high quality music without the need for a computer.

  1. Headphone amplifier

The Xonar Essence One integrates an audiophile-class headphone AMP circuit which powers up all Hi-Fi headphones, enabling 100% performance even with impedance of sets up to 600ohms. It offers extra dynamics, sound details and low distortion for the absolute best sound quality possible.

Specifications

Items

Description

Audio Performance

Output Signal-to-Noise Ratio (A-Weighted):

120dB

Output Total Harmonic Distortion + Noise at 1kHz@-3dB  (A-Weighted) :

-110dB

Output/Input Full-Scale Voltage

Balanced Output: 4Vrms

Unbalanced Output: 2Vrms

Headphone: 7Vrms

Frequency Response (-3dB, 24-bit/192kHz output ):

<10Hz to 48kHz

Sample Rate and Resolution

Analog Playback Sample Rate and Resolution

44.1K/48K/88.2K/96K/176.4K/192KHz @ 16/24bit

Upsampling capability

Up to 352.8kHz (44.1/88.2 /176.4kHz input) or 384kHz (48/96/192kHz input), 32bit

I/O Ports

Output Jack:

Balanced Output (XLR)

Unbalanced Output (Dual RCA)

6.3mm Jack headphone output

Metal with plated gold, black housing

Input Jack:

USB jack

Coaxial / Toslink jack

Metal with plated gold, black housing

Accessories

Accessories

USB cable (‘B-A' type) *1

Power cord *1 (Some versions may have 2 power cords for different countries)

6.3mm to 3.5mm adaptor *1

User manual *1

Audio Precision (AP) test report *1

Installation driver CD *1

About ASUS

ASUS, the world's top 3 consumer notebook vendor and the maker of the world's best-selling and most award winning motherboards, is a leading enterprise in the new digital era. ASUS designs and manufactures products that perfectly meet the needs of today's digital home, office and person, with a broad portfolio that includes motherboards, graphics cards, optical drives, displays, desktops, Eee Box and all-in-one PCs, notebooks, netbooks, tablet devices, servers, multimedia and wireless solutions, networking devices, and mobile phones. Driven by innovation and committed to quality, ASUS won 3,398 awards in 2010, and is widely credited with revolutionizing the PC industry with the Eee PCTM. With a global staff of more than 10,000 and a world-class R&D team of 3,000 engineers, the company's revenue for 2010 was around US$10.1 billion.