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AURALIC Leo GX.1
LEO GX.1
Reference Master Clock
LEO GX is a breakthrough in digital audio system clocking — the first master clock ever that can feed a DAC directly with a working signal so precise we had to use new benchmarks to measure its performance. Wider staging, pinpoint locational accuracy, and an expanded dynamic range are just some of the benefits you’ll hear when you implement LEO GX’s one-of-a-kind approach to clocking that literally bypasses the traditional limitations of internal DAC clocks.
Traditional Clocking
Normally, phase-locked loop circuits (PLL) in a DAC are used to synchronize its internal working signal with the more accurate incoming signal from a reference clock. But they’re noisy. And even though the working signal can be nudged a bit to match up with the reference signal, its frequency — and the precision of the analog waveform that’s based on it — is ultimately limited by the DAC’s own clock circuit.Direct-to-DAC Design
Thanks to its unique Jitter-Free Operation, when the VEGA G2 joins forces with the LEO GX these devices accomplish something extraordinary. Instead of merely synchronizing with the LEO GX, the VEGA G2 actually uses the exceptionally high frequency incoming clock from the LEO GX directly — as its own working signal. In other words the LEO GX bypasses the internal VEGA G2 clock circuit entirely, and drives waveform creation directly with its signal. No more PLL, and no more limitations.Clock Structure
LEO GX hardware starts with two temperature-controlled rubidium atomic reference clocks. Each is paired with an oscillator using stress compensated cut crystals, for thermal and mechanical resilience and low phase noise performance. The result is the LEO GX’s remarkably high signal frequencies: 90.316MHz for 44.1-based audio signals, and 98.304MHz for 48K-based signals. Benchmark
Allan Deviation: 2E-12 (1 second)
Equivalent Jitter: 500 times less than an 82fs femto clock (1Hz-10Hz)
Equivalent Phase Noise: -110dBc/Hz@1Hz (Ref Frequency: 10MHz)
The Clock
Frequency: 90.3168MHz (44.1KHz) | 98.3040MHz (48KHz)
Output Level: 3.3V CMOS (Direct-to-DAC Design)
Reference: Temperature-controlled Rubidium atomic clock
Oscillator: Temperature-controlled SC cut crystal
Sampling Rate
PCM: 44.1KHz to 384KHz in 32Bit
DSD: DSD64(2.8224MHz), DSD128(5.6448MHz), DSD256(11.2896MHz)
System Control
Switch sampling rate automatically via Lightning-Link with G2 DAC
Power Supply
Dual Purer-Power internal linear power supply
10uV low noise designed for audio circuits
Noise Elimination
Optical isolation between control and clock circuits
EMI-shielding Unity Chassis
Network
Gigabit Ethernet (For firmware upgrade use)
Power Consumption
Warmup: 30W at max
Running: 15W
Dimensions - W x D x H
13.4 x 12.6 x 3.2 in. (34cm x 32cm x 8cm)
Weight
17.8 lbs (8.1kg)
Product Finishing
Anodized precision-machined extrusion aluminum case in matte black
Contents
AURALiC LEO GX Reference Master Clock
Hex wrench (for use of tighten clock cable)
Users's guide
Power cord
Lightning-Link cable
Basic version: High quality RF clock cable
Premium version: 60GHz aerospace grade clock cables
