AURALiC Sirius G2.1

Upsampling ProcessorSKU: Aur-SIR-G2.1



Triple Femto Clocks
Triple Femto Clocks have got you covered no matter how you like to connect. With 3 separate, super-accurate clocks cycling on the order of quadrillionth of a second, you’ll enjoy extremely low jitter and better sound. First clock takes care of digital outputs, the second regulates USB output and the last clock feeds the Proteus G2 processing platform. You can be sure your musical signal is always rock-steady.

Galvanic Isolation
SIRIUS G2.1 is equipped with two sets of high-speed galvanic isolators, between the processing platform and its audio circuits. Data can flow across the isolator, even while it physically separates and shields the audio circuits from interference. Precise re-clocking reduces jitter, and brand-new galvanic isolation provides even more protection against EMI noise. The result is a whopping 80% reduction in noise levels.

Flexible Filter Mode
Flexible Filter Mode gives you a nuanced level of control over your audio output. Its various modes were developed using a combination of objective data models and subjective testing, with each mode offering a unique array of filters to match the sonic quality of the source. Whether it’s modes to tweak in-band ripple, out-band attenuation, ultrasonic filtering and more, you’ve always got the power to dial in the performance you want.

Triple Purer-Power
The Purer-Power linear power supply reduces DC current noise by as much as 90dB with its power purification module. Using a specially designed transformer and unique wiring that minimizes vibration, noise from Purer-Power is kept below 1uV across the audible spectrum, leaving you to discover the details in your music, down to the last bit.

Smart-IR Control
Smart-IR Remote Control lets your AURALiC device map its functionality onto any remote you’d like. Just let the device know which remote you prefer, and all of its operations. Changing of processing functions, volume, filter mode and more can be assigned to buttons just the way you like them.

Audio Inputs
Lightning Link (Up to 384K/32bit, DSD512)
USB Audio (Up to 384K/32bit, DSD512)*
AES/EBU (Up to 192K/24bit, DSD64 via DoP)
Coaxial (Up to 192K/24bit, DSD64 via DoP)
TOSLINK (Up to 192K/24bit, DSD64 via DoP)

Audio Outputs
Lightning Link (Up to 384K/32bit, DSD512)
USB Audio (Up to 384K/32bit, DSD512)**
AES/EBU (Up to 192K/24bit, DSD64 via DoP)
Coaxial (Up to 192K/24bit, DSD64 via DoP)
TOSLINK (Up to 192K/24bit, DSD64 via DoP)

THD+N: <-165dB (Resample to PCM 44.1K - 384K)
THD+N: <-155dB (Resample to DSD128 - DSD512)
THD+N: <-150dB (Resample to DSD64)

Processing Features
Signal Reclock and Jitter Removal****
PCM and DSD Resampler
8-Band Parametric Equalizer
Speaker Placement Compensation
High Precision Digital Volume Control

Processing Platform
AURALiC Tesla G1 for general hardware control
AURALiC Proteus G2 for music signal processing

Power Supply
Triple-Channel Purer-Power internal linear power supply, 10uV low noise design for audio circuits

Internal Clock
Triple Femto Clocks for Digital Outputs, USB Output and Proteus G2

Noise Elimination
Dual Galvanic Isolation for digital and USB audio outputs
Unity Chassis II with copper EMI shieling enclosure

Gigabit Ethernet (For firmware upgrade use)

Power Consumption
50W at max.

Dimensions - W x D x H
13.4 x 12.6 x 3.7 in. (34cm x 32cm x 9.6cm)

21.0 lbs (9.5kg)

Product Finishing
Anodized aluminum case in matte black with copper EMI shielding enclosure.

AURALiC SIRIUS G2.1 Upsampling Processor
Power cord
USB Cable
Lightning-Link Cable
User's guide

* SIRIUS G2.1 USB Audio input does not require driver for Mac OS X and Linux system. AURALiC USB Audio Driver is high recommended for use with Windows system. DSD512 is not supported by Mac OS X.
** USB DAC needs to be compatible with Linux system. DSD512 can only be output via native DSD format because the maximum DoP output rate is limited to DSD256. Please check with your DAC's compatibility.
*** All tests are processed under "Precise" filter mode.
**** All signals coming from any input will first be converted into a high frequency multi-bit data stream for jitter removal and for any user-enabled processing. The processed data will then be resampled to the customer’s selected output frequency and then be sent out of SIRIUS G2.1. This processing structure means SIRIUS G2.1 does not have a passthrough mode and will not passthrough MQA content.

About AURALiC - Sound Of Innovation

AURALiC was conceived in 2008 amidst the strains of beautiful music. That’s when founders Xuanqian Wang and Yuan Wang met at the Waldbühne Berlin Festival. Their shared appreciation of music and their perfectly complimentary skillsets were the foundation for an inevitable collaboration, and in 2009 AURALiC was born.

Built around the idea that true hi-fi should be accessible to everyone, AURALiC today enjoys a worldwide reputation for innovative digital and analog components that sound as great as they look. We build devices that help you explore digital streaming, discover new music, and share experiences with friends. They connect your home by delivering high-resolution music to every room, and make novel use of your mobile devices to take control of it all.

Combining progressive technologies that deliver on the promise of modern digital formats with revitalised analog circuitry and hardware rooted in classic designs, AURALiC is always creating new ways to bring you closer to the music than ever.

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