Furutech Flux-50 NCF Inline AC Power Filter (each)

Furutech Flux-50 NCF Enhances AC Performance with Advanced In-Line Filtering

Furutech Flux-50 NCF is a high-end in-line power filter designed to purify AC signals with exceptional precision, delivering profoundly silent, transparent power to your audio components. This reference-level inline filter represents Furutech’s top-tier engineering, seamlessly integrating proprietary Nano Crystal² Formula (NCF) technology with a series of electromagnetic and mechanical damping solutions. Whether you're connecting high-resolution audio gear or sensitive source components, the Flux-50 NCF ensures pristine signal integrity by dramatically reducing electrical and mechanical noise.

Flux-50 NCF Reduces AC Line Noise Through Multi-Stage Filtering

Flux-50 NCF reduces electromagnetic interference and suppresses AC line contamination by combining high-grade materials, proprietary filter circuitry, and resonance control mechanisms. Its integrated AC-1501R EMI filter uses a parallel circuit with a precisely engineered coil and capacitor to attenuate high-frequency noise. Lab results show effective suppression of noise at 1MHz by 10dB and over 30dB at 10MHz, targeting the most disruptive frequencies carried on the power line.

This finely calibrated filtering preserves micro-detail in playback by cleaning up voltage sags, spikes, and high-frequency noise from power supplies, digital interconnects, and even the system's own components. The result is a neutral, articulate power supply line that elevates dynamic expression, soundstage depth, and tonal refinement.

Flux-50 NCF Uses NCF and Piezo Ceramics to Suppress Resonance

Flux-50 NCF suppresses mechanical resonance through an advanced multi-material design that neutralises vibrational energy before it can reach sensitive component circuitry. Furutech’s Nano Crystal² Formula (NCF)—exclusive to its elite product range—combines a crystalline compound that emits negative ions and far-infrared energy with nano-sized ceramic and carbon particles, creating an optimal dielectric environment with “Piezo Effect” damping.

These active and passive materials work in unison with the FI-50R NCF power connector, constructed with nylon, fibreglass, and nonmagnetic rhodium-plated copper alloy. This hybrid blend stabilises signal transfer and insulates against both electrical and mechanical distortions, preserving sonic fidelity across the frequency spectrum.

Flux-50 NCF Improves Sound Through Vibration Isolation and Shielding

Flux-50 NCF improves sound quality by minimising vibration and shielding against radiated AC noise through its layered construction. It features a triple-core α (Alpha) OCC copper conductor architecture with a 62-strand braid per core, surrounded by a multi-layer insulation system. The inner sheath, enhanced with carbon powder-infused PVC, works in tandem with the braided α (Alpha) conductor shield and outer PE insulation to absorb external interference and isolate internal vibrations.

A heavy-duty metal cable clamp—patent pending—adds a mechanical stabilisation point, improving grip and suppressing structural resonance. Meanwhile, the Floating Field Damper system (US Patent No. 6,669,491) eliminates potential differences between grounding points, preventing the injection of unwanted noise from ground loops.

Flux-50 NCF Elevates System Performance for Audiophiles and Professionals

Flux-50 NCF elevates system performance by enhancing current purity across every downstream component, delivering tangible improvements in tonal realism, imaging, and low-frequency articulation. With the capacity to handle AC 115V/250V at 15A and 50/60Hz, it’s ideally suited for integration between high-current power cables and power distributors, or directly between power cords and premium components.

Users consistently report that the Flux-50 NCF produces palpable improvements in dynamic range, musicality, and spatial clarity. By lowering the noise floor to near-inaudible levels, the filter allows delicate audio information to emerge fully intact. Instruments gain presence; vocals exhibit greater nuance; ambient textures reveal space and dimensionality previously masked by line noise.

Flux-50 NCF Features Reference-Grade Construction for High-End Systems

Flux-50 NCF features precision engineering in both its electrical path and external build. With a robust nylon braid jacket, 18.8mm diameter cable body, and a GC-303 passive EMI absorption layer set in Piezo-epoxy resonance damping, every aspect of the Flux-50 NCF is optimised for high-stability signal transmission and long-term durability in demanding setups.

Its rhodium-plated nonmagnetic FI-50R NCF connector ensures long-term resistance to oxidation and superior conductivity, making it a reliable choice for audiophiles and engineers who require uncompromised current delivery and signal preservation.

Designed and manufactured by Furutech, a brand recognised for its innovation in high-performance audio accessories, the Flux-50 NCF In-Line AC Filter stands as an essential addition to any reference system where signal purity and micro-dynamic detail are paramount.