AIM NA4 Ethernet Cable

The NA4 steps up from the NA2 with a triple-layer shielding architecture — double aluminum shield plus high-density copper braid — and newly developed high-purity OFC conductors. It's the level where the improvement over standard Ethernet cables becomes immediately apparent in systems that aren't particularly resolving, not just in reference-level setups.

The Shielding

Three distinct layers: the first aluminum shield addresses high-frequency interference with flexibility that allows it to wrap cleanly around the internal structure. A second aluminum layer adds additional coverage in the same frequency range. The high-density copper braid handles broad-spectrum shielding with particular effectiveness in the audio band. Together they create a noise barrier that significantly reduces what reaches your streamer from the network.

Noise-resistant die-cast connectors add another layer of protection at the termination points — the weak link in many otherwise well-built cables.

Our Experience

We've compared the NA4 against the NA2 in our system. The improvement is real: the background is quieter, low-level detail is more accessible, and the bass has more definition. Not subtle in a resolving system. The NA4 is where we'd start the AIM conversation for most listeners.

Press Recognition

The NA4 has been discussed in the context of AIM Ethernet cable reviews on hi-fi+ and AudiophileStyle, where it's positioned as the performance sweet spot in the range relative to price.

Specifications

• Shielding: Double aluminum shield plus high-density copper braid (three layers total)
• Conductors: Newly developed high-purity OFC
• Internal structure: Cross-frame
• Connectors: Noise-resistant die-cast
• Available lengths: Up to 10m
• Origin: Made in Japan by AIM Electronics

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