Description
High-Speed Audiophile Network Switch for Modern Digital Audio Systems
2.5G Ethernet. Dual 10G Optical. Precision Clocking.
The LHY Audio AS6 Pro builds upon the award-winning AS6 platform, delivering greater bandwidth, improved internal isolation, and enhanced clocking for today’s high-performance digital audio systems. Designed for audiophiles who demand the very best from network streaming, the AS6 Pro combines enterprise-grade networking with meticulous audio engineering to create an exceptionally clean and stable network foundation.
Featuring four 2.5Gb Ethernet ports, dual 10Gb SFP+ optical ports, external 10MHz master clock input, and selectable grounding control, the AS6 Pro offers unprecedented flexibility for building dedicated high-performance audio networks.
Designed for the Next Generation of Digital Audio
As streaming systems become more sophisticated, network infrastructure must evolve to support higher bandwidth, lower noise, and improved timing accuracy.
The AS6 Pro expands on the proven AS6 architecture by introducing dual 10Gb optical connectivity and faster 2.5Gb Ethernet, making it ideal for music servers, NAS drives, Roon Core systems, network bridges, and modern streaming DACs.
High-Speed Optical Backbone
- 2 × 10Gb SFP+ optical ports
- 4 × 2.5Gb RJ45 Ethernet ports
- Supports high-speed local audio networks
One SFP+ port can be used for your incoming network connection while the second creates a dedicated high-speed optical link to another switch, music server, or compatible network DAC. This dramatically reduces electrical noise while maintaining maximum network performance.
Dual Optical Isolation
Unlike conventional network switches, the AS6 Pro allows fibre optic connections on both the incoming and outgoing network paths.
This creates two stages of optical isolation, helping to minimise electrical interference before it reaches your most sensitive audio components.
- Reduced network noise
- Improved signal integrity
- Lower EMI entering the audio system
- Greater transparency and musical detail
Expand Your Dedicated Audio Network
Using the second SFP+ port, multiple AS6 or AS6 Pro switches can be cascaded together via fibre to create a dedicated audio network independent of the main household network.
This architecture is ideal for larger reference systems where music servers, NAS devices, streamers and network DACs benefit from complete isolation and high-speed connectivity.
Reference-Grade Clock Architecture
Accurate timing remains one of the most critical aspects of digital audio.
The AS6 Pro incorporates an ultra-low phase noise SC-cut OCXO, paired with the renowned Silicon Labs SI5381A PLL clock management system, providing exceptional timing stability for packet transmission.
For even greater performance, the rear-panel 10MHz input allows synchronisation with an external master clock such as the LHY Audio OCK series.
Purpose-Built Internal Design
Every internal section of the AS6 Pro has been physically separated to minimise interference between sensitive circuits.
- Dedicated AC input and EMI filtering section
- 30VA linear toroidal transformer in its own compartment
- Dual-stage low-noise DC regulation using LT3042 regulators
- Independent switching and precision clock section
- Separate grounding architecture
This carefully engineered layout helps reduce unwanted interaction between power delivery, switching activity and precision clock circuitry.
Grounding Control for System Optimisation
The AS6 Pro introduces selectable Float / Ground operation together with a dedicated grounding terminal, allowing users to optimise grounding arrangements for their individual systems and minimise unwanted ground-related noise.
What You’ll Hear
With the AS6 Pro at the heart of your streaming system, music emerges with greater precision, improved timing, and a noticeably quieter background.
- Improved imaging and soundstage
- Greater instrument separation
- Lower perceived noise floor
- More natural timing and rhythm
- Enhanced transparency and realism
Built for Today’s Reference Streaming Systems
Whether you’re building a fibre-isolated network, synchronising multiple devices with a master clock, or simply looking to maximise the performance of your streamer, the LHY Audio AS6 Pro delivers the bandwidth, flexibility and precision expected from a true audiophile network switch.
AS6 vs AS6 Pro Comparison
| Feature | AS6 | AS6 Pro |
|---|---|---|
| RJ45 Ethernet | 4 × 1Gb | 4 × 2.5Gb |
| SFP Ports | 1 × 1Gb SFP | 2 × 10Gb SFP+ |
| Optical Backbone | Single Fibre Connection | Dual Optical Backbone |
| Optical Isolation | Single Isolation Stage | Dual Fibre Isolation Path |
| Switch Cascading | Supported | High-Speed Optical Cascading |
| Master Clock Input | 10MHz BNC | 10MHz BNC |
| Ground Control | Standard | Float / Ground Selectable + Ground Terminal |
| Clock Architecture | OCXO + PLL | SC-Cut OCXO + SI5381A PLL |
| Power Supply | 30VA Linear Transformer | 30VA Linear Transformer with Improved Internal Separation |
| Internal Layout | Optimised | Redesigned Multi-Zone Internal Architecture |
| Ideal For | High-End Streaming Systems | Reference Fibre Audio Networks & Multi-Device Systems |
