COS Engineering S6 – Audiophile Network Switch
The COS S6 is a refined 6-port network switch designed to eliminate the frustrating loss of audio fidelity commonly associated with digital streaming. Built with the same philosophy as COS's flagship S10, the S6 integrates low-noise circuitry, precise clocking, and clean power in a compact and more affordable form.
As one reviewer aptly put it — adding the S6 to your hi-fi streaming system is like uncorking your favorite wine: it restores musical nuance, smoothness, and depth.
🔧 Key Features
6-Port Layer-2 Unmanaged Switch
Purpose-built for high-end music streaming applications.
Precision Clocking
Dual ultra-low jitter oscillators (0.025 ps) ensure stable timing and a quieter digital background.
Clean Power Design
External wall power adapter
4 low-noise regulators
Internal copper shielding to reduce EMI
Optimized Port Design
4 × RJ45 Copper Ports (10/100/1000 Mbps)
2 × SFP Fiber Ports (1000/100 Mbps)
Each copper port is individually switchable (DIP switch under the chassis)
LED indicators can be switched off for cleaner operation
Chassis Construction
Durable enclosure made of copper, steel, and aluminum alloy
Finish available in Silver or Black
📦 Specifications
Feature
Description
Type
Layer-2 Unmanaged Audiophile Ethernet Switch
Copper Ports
4 × RJ45 (10/100/1000 Mbps, individually switchable)
SFP Ports
2 × SFP (1000/100 Mbps)
Oscillator Jitter
0.025 ps
Power Supply
External wall adapter (100120V or 220240V)
Regulators
4 × Low-noise voltage regulators
Power Consumption
10 VA
Dimensions
260 mm (W) × 250 mm (D) × 60 mm (H)
Weight
2.6 kg (excluding packaging)
Color Options
Silver / Black
Materials
Copper-shielded plate, steel, and aluminum alloy
🎯 Who Is It For?
Perfect for the audiophile looking to upgrade streaming performance without the size or cost of a full-spec switch like the S10. The S6 brings clearer highs, deeper backgrounds, and richer musical textures — especially in systems where detail retrieval matters.