The AURALiC VEGA S1 Streaming DAC is a versatile and high-performance audio component that combines advanced streaming capabilities with a high-quality digital-to-analog converter (DAC). Designed to deliver exceptional sound quality, it incorporates several proprietary technologies and offers a range of features tailored to audiophiles and music enthusiasts.
Design and Build
The VEGA S1 features a clean, modern aesthetic with an immaculately constructed chassis. Its front panel is a full glass screen, complemented by discreet buttons on the top surface, contributing to its sleek appearance. The display is large enough to be useful, providing clear information during operation. Notably, the VEGA S1 omits wireless connectivity in favor of Ethernet, a design choice aimed at reducing noise and costs, though it may slightly reduce installation ease.
Key Features and Technologies
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Tesla G3 Streaming Platform: At the heart of the VEGA S1 is AURALiC's Tesla G3 platform, which includes Direct Data Recording (DDR) technology. This system stores incoming music signals in a substantial 2GB RAM buffer before processing, ensuring minimal jitter and distortion.
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Fusion DAC with PureDAC Mode: The integrated Fusion DAC combines discrete ladder and delta-sigma technologies, supporting resolutions up to 32-bit/384kHz and DSD512. The PureDAC mode allows users to disable the streaming platform, enabling the VEGA S1 to function solely as a DAC if desired.
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Tone and Filter Settings: Users can choose between 'Clear' and 'Mellow' tone modes. The 'Clear' mode offers maximum transparency, while 'Mellow' adds harmonic warmth reminiscent of tube amplifiers. Additionally, four digital filter settings—Smooth, Dynamic, Precise, and Balance—allow further sound customization.
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Analog Volume Control and Preamplifier Functionality: The VEGA S1 includes an analog ladder resistor volume control and preamplifier features derived from AURALiC's flagship models, enabling direct connection to power amplifiers or active speakers.
Connectivity and Expansion
The VEGA S1 offers a range of inputs, including coaxial, two Toslink optical, and USB-B for external digital sources. A USB-A port labeled 'HDD' supports CD playback and allows connection of USB storage drives. Analog outputs are available via both balanced XLR and unbalanced RCA connectors. For users seeking enhanced performance, an optional S1 Purer-Power external linear power supply is available. This upgrade connects via an HDMI port labeled 'Ext PSU' and provides double the capacity of the internal supply, leading to improved sound quality.
Performance
In various listening tests, the VEGA S1 has been praised for its engaging and precise sound reproduction. Reviewers have noted its ability to deliver clean, open audio with excellent timing and definition. The addition of the S1 Purer-Power supply further enhances performance, offering a more detailed and expansive soundstage. The unit's design choices, such as the omission of wireless connectivity, contribute to a quieter internal environment, benefiting overall sound quality.
Conclusion
The AURALiC VEGA S1 Streaming DAC stands out as a well-designed, feature-rich component that delivers high-quality audio performance. Its combination of advanced technologies, thoughtful design, and upgrade potential makes it a compelling choice for those seeking a versatile and high-performing streaming DAC.