AURALIC VEGA G2.2 Streaming DAC

Description

The Auralic VEGA G2.2 builds upon the already impressive foundation of their predecessor, the G2.1, retaining key features such as the AURALiC’s proprietary Fusion DAC structure, Direct Data Recording (DDR), Galvanic Isolation, passive analog volume control, and analog pre-amplifier. The unique architecture of VEGA G2.2 and G3 avoids using a PLL circuit as it cannot fully remove the distortion and jitter present in the original clock signal. Instead, it records the audio data directly into the Tesla G3 processing platform's system memory in binary format, bypassing the original clock signal entirely. As a result of these cutting-edge technologies, the VEGA G2.2 are immune to the input signal's distortion and jitter, delivering the highest level of sound quality possible.

The VEGA G2.2 now incorporates the advanced Tesla G3 platform, providing a significant boost to it's processing power and capabilities. Additionally, a new dual 60fs Femto Clocks powers the DAC operation and time the Tesla G3's data output to the DAC. The result is an unparalleled listening experience, with stunning detail, clarity, and precision that is free from any distortion or jitter.

The VEGA G2.2 streaming DAC represents the latest evolution in high-end DAC performance and cutting-edge analog circuit. AURALiC is at the forefront of digital audio technology, continuously pushing the boundaries with innovative new technologies.

• Fusion DAC

When it comes to audio digital-to-analog converters (DACs), there are two primary designs: discrete ladder DAC and Delta-Sigma DAC. The popular discrete ladder DAC design allows designers to use different components for various parts of the circuit, providing greater flexibility in tailoring the sound signature. However, the discrete ladder DACs can suffer from non-linearities caused by precision mismatches in the resistor values. Uneven temperature changes also play a significant role in introducing non-linearity to the system. This can lead to distortion and reduced overall performance.

Delta-Sigma DACs are known for their high accuracy and resolution, which is achieved through precise manufacturing processes. These DACs also offer a high dynamic range and low noise and distortion level, making them well-suited for high quality music playback applications. However, Delta-Sigma DACs are often integrated with complicated digital circuits like Phase Lock Loop (PLL), digital filter, and oversampling circuits, which can make them less customizable for designers. This can limit their suitability for high-end applications where customization and flexibility are important.

AURALiC's Fusion DAC design in the VEGA G2.2 product has pioneering technology that combines the best features of discrete ladder and Delta-Sigma DAC designs. This innovative approach uses a high performance, manufacturer DAC chip as a basis for modification. Most of the DAC chips’ functions, such as PLL, digital filter, and oversampling circuits are bypassed, and instead AURALiC's proprietary clock reconstruction, digital filter, and oversampling technologies are deployed. This unique approach ensures that only the precise switching network inside a DAC chip is used for the final digital-to-analog conversion stage, resulting in exceptional sound quality. This Fusion DAC design facilitates a unique level of customization and flexibility, providing users with the ability to fine-tune and optimize the DAC to their individual preferences. Overall, AURALiC’s proprietary implementation of this unique, in-house developed technology represents a significant advancement in DAC design, offering exceptional performance and unparalleled sound quality.

• Direct Data Recording

The VEGA G2.2is equipped with AURALiC's proprietary Direct Data Recording (DDR) technology. Unlike traditional DACs that rely on a Phase Lock Loop (PLL) circuit to reconstruct the incoming clock signal, our DDR technology avoids using a PLL circuit as it cannot fully remove the distortion and jitter present in the original clock signal. Instead, we record the audio data directly into the Tesla G3 processing platform's system memory in binary format, bypassing the original clock signal entirely.

Next, a series of advanced digital filters and oversampling algorithms process the audio data, optimizing it for the best possible performance. To power the DAC operation and time the Tesla G3's data output to the DAC chip, a dual 60fs Femto Clocks - one for 44.1x and another for 48x sampling frequencies - acts as a master clock, independent of the input audio signal.

As a result of these cutting-edge technologies, the VEGA G2.2 is immune to the input signal's distortion and jitter, delivering the highest level of sound quality possible. The result is an unparalleled listening experience, with stunning detail, clarity, and precision that is free from any distortion or jitter.

Additional Information