MATRIX AUDIO SI-1

The Matrix Audio SI-1 Audio Grade Network Isolator presents itself as a high-end accessory designed for Hi-Fi enthusiasts seeking ultimate sonic purity, integrating seamlessly into the brand’s ecosystem while contributing to a cleaner and more controlled sonic foundation. Thanks to its active optical-electrical isolation technology, it effectively blocks electromagnetic interference generated by routers and network switches, eliminating noise that can contaminate the audio signal; at the same time, it breaks ground loops and prevents unwanted currents caused by potential differences between devices, delivering an exceptionally silent background from which music emerges with greater clarity, depth, and naturalness.

Its internal design stands out for a dual-channel architecture with separate optical transmission for sending and receiving, a solution that eliminates mutual interference and crosstalk at the source; two femtosecond clocks operate in synergy with a linear power supply based on a dual-winding toroidal transformer and multiple LDO regulators, ensuring stable and noise-free power delivery. This approach preserves data integrity, reduces transmission errors and jitter, improves timing accuracy, and allows every musical detail to be reproduced with outstanding precision.

Equipped with two 1Gbps RJ45 ports, one input and one isolated output, the device adopts a physically separated circuit layout; the output port also incorporates electrical isolation that further enhances signal quality, drastically reduces errors, and completely breaks electrical continuity between connected devices. In this way, it effectively protects high-value digital audio systems such as streamers, network players, and DACs from lightning strikes, power surges, electrostatic discharge, and mains noise, ensuring reliability and uninterrupted listening.

The design follows the brand’s signature aesthetic language with a CNC-machined unibody aluminum chassis, offering a premium tactile feel while enhancing shielding against external interference; on the front panel, LED indicators clearly display the operating status, while those on the rear Ethernet ports can be switched off to avoid any light pollution, ensuring a fully immersive listening experience. Designed to pair perfectly with the brand’s streamers, the SI-1 embodies a vision focused on absolute sonic purity, enhancing overall system performance and opening new possibilities for cleaner signal paths, where every musical nuance is reproduced with precision and coherence.

Technical specifications:

• Standards and protocols: IEEE 802.3 (10BASE-T); IEEE 802.3u (100BASE-X); IEEE 802.3z (1000BASE-T); IEEE 802.3ab (1000BASE-T)
• Ports: 1 x RJ45 1Gbps/100Mbps/10Mbps; 1 x RJ45 1Gbps/100Mbps/10Mbps with photoelectric isolation
• LED indicators: 1 front LED for power status; 2 front LEDs for link status; 2 LEDs per rear
• LAN port for speed, link, and activity
• MAC table: up to 2K MAC addresses
• Power specifications: AC 100V–120V 50/60Hz or AC 220V–240V 50/60Hz (factory set); power consumption < 15W
• Dimensions: width 120 mm; depth 205 mm; height 44 mm
• Weight: 1.54 kg