AS6 Pro brings high-speed networking, precision clocking and low-noise linear power together for systems built around streamers, music servers and NAS.
Skyworks SI5381A PLL manages and distributes timing to the switching stage.
EXTERNAL CLOCK
10MHz
50Ω BNC input for a compatible external master clock.
Accepts sine or square-wave signals.
LINEAR POWER
30VA
Dedicated transformer.
A linear transformer in its own compartment, with EMI filtering at the AC input.
Dual independent DC conversion LT3042 low-noise regulation supplies critical circuits.
INTERNAL SEPARATION
Four zones.
AC input, transformer, DC regulation and network/clock circuitry occupy distinct sections to help reduce interaction between stages.
GROUNDING CONTROL
Float / Grounded
A dedicated grounding terminal and mode switch let you configure grounding to suit the rest of your system.
SFP-to-RJ45 module included. Adds a copper Ethernet connection through an SFP port.
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Product FeaturesProduct Features
AS6 Pro 2026 Audiophile Ethernet Switch
AS6 ProQuiet the network. Reveal the system.
Built for listeners who have already refined the rest of the chain, AS6 Pro brings optical isolation, precision clocking, clean power, grounding control, and CNC partitioned shielding into the network layer.
When the Network Becomes Part of the System
In a revealing streaming system, the switch is no longer ordinary infrastructure. AS6 Pro is a dedicated Ethernet switch for streamers, ROON Core, NAS, audio servers, fiber links, and advanced digital audio systems, engineered around clock precision, phase-noise control, power cleanliness, grounding, isolation, and transmission stability.
Dual 10G SFP+Optical isolation for cleaner links
4 x RJ45 LANUp to 2.5G per port
OCXO ClockSC-CUT oven-controlled reference
10MHz InputWorks with external master clocks
Skyworks PLLClock shaping and distribution
uV-Level PowerThree independent low-noise rails
FLOAT / EARTHDedicated grounding mode control
CNC AluminumPartitioned shielding chassis
SFP to RJ45Custom electrical module included
Playback TuningOptimized for streaming systems
01 / Streaming Network Foundation
Lower the noise before the music begins.
AS6 Pro addresses network noise, ground-related interference, clock jitter, power contamination, and internal EMI at the hardware level, supporting a more stable transmission base for the digital audio chain.
Hi-Fi Streaming System
Designed where speed alone is not enough.
Inside the compact aluminum chassis are a SC-CUT OCXO clock, Skyworks PLL, dual 10G SFP+ ports, and four RJ45 ports supporting up to 2.5G. Connectivity, clocking, and isolation are treated as part of the same audio-focused design.
02 / Dual 10G SFP+ Optical Ports
Break the electrical path. Keep the link calm.
Dual 10G SFP+ ports support fiber connections to routers, NAS, ROON Core, or streamers, helping break electrical paths that may carry common-mode noise, ground interference, and external EMI into the audio system.
Use AS6 Pro as an upstream fiber input or as a dedicated optical link for audio equipment when a quieter network background matters.
03 / Audio-Optimized LAN, Up to 2.5G
More headroom, less network pressure.
Four Ethernet ports support up to 2.5G, providing bandwidth headroom beyond standard Gigabit connections and reducing congestion risk across streamers, NAS, ROON Core, music servers, and large local libraries.
For high-resolution PCM, DSD, and lossless collections, the additional headroom helps keep data transfer stable under demanding playback conditions.
04-09 / Core Engineering
Engineered below the surface, built for a quieter chain.
04 / Custom SFP to RJ45 Module Included
Bridge fiber and copper with a matched module.
The included SFP to RJ45 electrical module helps integrate fiber and Ethernet devices in the same system. It is selected for audio use, keeping the conversion path convenient while preserving the focus on low-noise network transmission.
05 / OCXO Clock Architecture
Precision clocking for the switching stage.
The SC-CUT OCXO oven-controlled clock maintains a stable operating environment to help reduce phase noise and jitter. A Skyworks SI5381A PLL then locks, shapes, and distributes the clock signal for the switching stage.
06 / 10MHz External Clock Input
Ready for an external master clock.
The 10MHz BNC input allows AS6 Pro to synchronize with a higher-grade clock source, supporting systems that are built around tighter digital timing and lower transmission jitter.
07 / Dedicated Grounding with FLOAT / EARTH
Set grounding to match the system.
A dedicated grounding terminal and FLOAT / EARTH mode switch let users adapt AS6 Pro to their own system environment, reducing the influence of ground loops, common-mode noise, and high-frequency interference.
08 / Three Independent uV-Level Power Supplies
Independent low-noise power for critical stages.
A NORATEL toroidal transformer provides low-leakage, low-noise AC input. Internal EMI filtering and independent low-noise supply paths feed the clock, switch controller, and sensitive modules separately to reduce cross-interference.
09 / Selected Hi-Fi Components and Acoustic Calibration
Selected components, calibrated for playback.
Selected components and layered signal tuning support background purity, density, dynamics, imaging, and detail retrieval, allowing the network link to serve as a stable part of the streaming chain.
10 / CNC Aluminum Chassis
Machined aluminum with internal partitioning.
The CNC-machined aluminum chassis adds structural strength and shielding performance. Inside, physical partitioning separates power, clocking, network switching, and signal areas to reduce EMI and module-to-module interference.
Available in Glacier Silver and Silent Black, AS6 Pro is designed to sit naturally in high-end Hi-Fi systems and desktop audio setups.
Choosing Your Foundation
AS6 or AS6 Pro
Choose AS6 for a streamlined high-fidelity streaming setup. Choose AS6 Pro when the network itself becomes part of the system architecture, with greater connection headroom, optical integration, grounding control, and setup flexibility.
AS6
Streamlined Streaming System
Choose AS6 for a clean, mature network switch in systems with straightforward connection requirements.
Mature AS6 platform for high-quality streaming
OCXO clock architecture with 10MHz external clock input
Suited to compact systems with fewer digital front ends
Ideal when the network layout is already simple
When the system layout is clear and connection needs are focused, AS6 provides a simpler, stable network foundation.
AS6 Pro
Advanced Audio Network Foundation
Choose AS6 Pro when your system includes NAS storage, ROON Core, music servers, optical links, external clocking, or a defined grounding strategy.
4 x RJ45 Ethernet, up to 2.5G, for more bandwidth headroom
2 x 10G SFP+ optical ports for expanded fiber integration
Dedicated grounding terminal with FLOAT / EARTH control
Deeper internal partitioning and greater setup flexibility
AS6 Pro is for systems where the network is no longer just a connection, but a foundation to refine.
Specifications
Core specifications for system matching.
Interfaces and Network
ProductAS6 Pro Audiophile Ethernet Switch
SFP Ports10Gbps SFP / SFP+ x 2
RJ45 PortsUp to 2.5Gbps RJ45 x 4, compatible with 1000/100/10Mbps
StabilityBelow ±5ppb; frequency accuracy below ±0.05ppm
GroundingDedicated grounding terminal x 1, grounding mode switch x 1
Size / Weight256 x 175 x 50mm; 3.3kg
Power220-240VAC or 110-120VAC; standby approx. 5W, full load approx. 16W
A quieter network is not an accessory. It is a foundation.
For streamers, ROON Core, NAS, audio servers, fiber links, and external master clocks, AS6 Pro brings optical isolation, precision clocking, grounding control, and low-noise power to the part of the system too often treated as ordinary infrastructure.
I am truly amazed at how this product improved my streaming experience. I have given 4 stars as I sometimes hear saturation in complicated and dynamic recordings which I dont not hear in my other setup. My setup is the ML 519 into the ATC SCM40A. I would be happy to receive some advice from LHY. I suspect it could be pushing the limit with the gain.
J
JO ILSOO
Except for the price, it has exceeded my expectations in every aspect.
The moment I switched from the Cisco industrial grade switch hub I had been using to this product, the sound overall became richer and gained much more depth. Since I had already achieved a certain level of background quietness using several filters, the background didn't become noticeably quieter, but I am still more than satisfied. I also briefly used Ansuz's entry-level switch hub before, but in my system setup, the AS6 Pro was far more effective.
A
Anonymous
Exceeds by far my initial expectations concerning the potential and/or questionable improvements in streaming-sound quality delivered by a „simple“ LAN-switch. Even the sound quality of albums stored on an internal SSD in my Streamer-DAC was significantly improved!
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