Stack Audio SmoothLAN Network Filter
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The SmoothLAN integrates seamlessly between your home network and music streamer with one clear purpose: to remove crosstalk and interference — eliminating potential sources of parasitic noise that can mask musical detail. It doesn’t fundamentally change your system’s sound; it simply reveals more of what it’s already capable of. Counteracting noise and preserving the precise timing of digital signal transmission are essential steps in allowing your Hi-Fi to perform at its full potential.
No matter how well-designed a circuit is, it will always inherently emit noise. When multiple circuits sit close together, that noise can bleed between sections – raising the noise floor and blurring signal precision. Just like placing a mobile phone too close to a speaker can cause buzzing, circuits inside a Hi-Fi system can interfere with each other when not properly isolated.
The SmoothLAN Filter is a purely passive device — it removes high-frequency noise and interference at the network input without using any external power. It contains six independent isolation stages and is designed to eliminate as much noise as possible at the point of entry, allowing your streamer to perform with greater clarity and stability.
The SmoothLAN addresses this by locally isolating the network input into your system. It uses six fully independent isolation circuits, each enclosed in its own precision-machined aluminium pocket. This physical separation drains unwanted energy and blocks both external and internal interference – ensuring a cleaner, more stable signal reaches your music streamer.
The SmoothLAN isn’t just a network filter – it’s a purpose built, multi-stage isolation system where every detail has been considered to preserve signal purity.
- Precision machined aluminium case: Each Isolation circuit sits in its own fully shielded pocket, physically seperating circuits and blocking external interference.
- EMI absorbing materials: Lining the pockets to capture and dissipate stray energy and reflections that can cloud performance.
- Sealed construction: Twenty precision screws ensure no gaps, preventing resonances or leakage paths that could compromise Isolation.
- Optimised PCB layout: Discrete components and carefully router high-speed traces minmise crosstalk, supported by grounded copper planes surrounding each circuit.
- Galvanic isolation: Breaks ground loops and blocks unwanted current flow between connected devices.
Built in the UK from premium‑grade materials and components, the SmoothLAN reflects Stack Audio’s philosophy: no compromises in performance or build quality, and true value designed to deliver exceptional performance for years to come.
A cable cannot enhance an audio signal. Instead, the aim is to preserve the signal purity and suppress interference. Our connecting cable is designed to safeguard the purity of the Ethernet signal between the SmoothLAN filter and the music streamer. The supplied cable is an oxygen free copper, CAT 7 cable, with gold plated connectors.