Matrix Audio SI-1 Audio Grade Network Isolator

Matrix Audio SI-1 Audio Grade Network Isolator

Elevate your streaming audio purity with the Matrix Audio SI-1 Audio Grade Network Isolator — a precision-engineered device that banishes network noise for cleaner, more authentic sound from your hi-fi system.

The Matrix Audio SI-1 employs advanced active optical-electrical isolation technology, converting Ethernet signals to optical internally to break direct electrical paths and eliminate electromagnetic interference, ground loops, and noise from routers or switches. This creates a secure "digital shelter" for your streamer, DAC, or network player, reducing jitter and enhancing signal integrity for noticeably improved clarity, dynamics, and background silence.

Featuring dual-channel optical transmission with independent send/receive paths to prevent crosstalk, dual femtosecond clocks for ultra-precise timing, and a sophisticated linear power supply with a dual-winding potted toroidal transformer and multiple LDO regulators, the SI-1 delivers stable, ultra-clean power to both isolated sides. Its full aluminum CNC-machined chassis follows Matrix Audio's signature design for durability and vibration resistance.

Ideal for serious streaming setups, the SI-1 sits between your router/switch and audio device with simple plug-and-play RJ45 connectivity — no configuration required. It supports full Gigabit speeds while providing measurable and audible benefits in high-resolution digital playback.

Experience the purest network audio transmission — the Matrix Audio SI-1 Audio Grade Network Isolator unlocks hidden detail and refinement in your streaming chain.

For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team. All Elite Audio is an authorized dealer for Matrix Audio in Maryland and operates a full home audio showroom.

Key Specifications

• Ports: 1 × 1Gbps/100Mbps/10Mbps RJ45 (Input), 1 × 1Gbps/100Mbps/10Mbps RJ45 (Isolated Output with photoelectric isolation)
  
• Standards & Protocols: IEEE 802.3 (10BASE-T), IEEE 802.3u (100BASE-X), IEEE 802.3z/ab (1000BASE-T)
  
• Isolation Technology: Active optical-electrical with dual-channel fiber transmission
  
• Clocking: Dual femtosecond precision clocks
  
• Power Supply: Dual-winding epoxy-potted toroidal transformer + multiple LDO linear regulators
  
• LED Indicators: Power status + link/activity (front panel); speed/link/activity per port (rear)
  
• MAC Address Table: 2K entries
  
• Power Consumption: ~15W
  
• Power Voltage: AC 100-120V or 220-240V 50/60Hz (factory set)
  
• Dimensions: 120 × 44 × 205 mm (W×H×D)
  
• Weight: 1.54 kg
  

Top 20 Questions About Matrix Audio SI-1

What is the main purpose of the Matrix Audio SI-1?
It isolates network noise via optical-electrical conversion to deliver cleaner Ethernet signals for streaming audio components.

How does the SI-1 improve sound quality?
By blocking EMI, ground noise, and interference, it reduces jitter and reveals greater clarity, detail, and blacker backgrounds.

Is the SI-1 a network switch?
No, it's a dedicated two-port isolator (one input, one isolated output) — ideal for single-connection audio setups.

Does it support Gigabit Ethernet?
Yes, both ports handle 10/100/1000 Mbps speeds with full compatibility.

What isolation technology does the SI-1 use?
Active optical-electrical isolation with dual-channel fiber transmission for independent TX/RX paths.

Why dual femtosecond clocks?
They ensure ultra-low jitter and precise timing on both sides of the isolation barrier.

What power supply does the SI-1 feature?
A premium dual-winding toroidal transformer with audio-grade linear regulation for clean, isolated power delivery.

Is setup complicated?
No — simply connect your network to the input port and your streamer/DAC to the isolated output; plug in power and it's ready.

Does it require configuration or software?
No, it's plug-and-play with no settings or apps needed.

Can I use it with any streamer?
Yes, it works with any network audio device including Matrix Audio models, Bluesound, Lumin, and more.

How many ports does the SI-1 have?
Two RJ45 ports: one standard input and one physically separated, isolated output.

Does the SI-1 run hot?
It consumes low power (~15W) and stays cool during operation.

What chassis material is used?
Full CNC-machined aluminum for rigidity, shielding, and premium aesthetics.

Are there status indicators?
Yes — front LEDs for power and link status, plus per-port LEDs on the rear.

Is the SI-1 compatible with PoE?
No specific PoE support; it's designed for standard Ethernet in audio chains.

What warranty does the Matrix Audio SI-1 include?
It carries the manufacturer's standard warranty; contact us for details.

How does the SI-1 compare to basic Ethernet isolators?
Its audio-optimized design with femtosecond clocks, toroidal power, and dual-channel isolation offers superior performance for hi-fi.

Can it benefit non-Matrix streamers?
Absolutely — any Ethernet-connected audio device gains from reduced network noise.

Is the SI-1 a good upgrade for streaming systems?
Yes, especially in setups with noisy networks; many users report significant sonic gains.

Where can I get expert help with the Matrix Audio SI-1?
For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team at All Elite Audio, your authorized Maryland dealer with a full home audio showroom.