全球唯一帶屏蔽三芯中空線結構，用聲音讓人徹底著迷
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延續單芯入戶空心線（HU-165 MKIII、HU-220 MKIII）的成功經驗，Monitor Acoustics將空心線技術進一步延伸至室內三芯電源專線領域，推出全新設計的SSS-50 MKII與SSS-40 MKII。其中，SSS-40 MKII為專為高階音響與專業電源配線而開發的最新款式。自導體源頭即嚴選6N LC-OFC高精純銅（超低含氧 2.8ppm），在製線的過程中，經多重退火與精煉處理，徹底去除金屬內部應力，使導體達到最佳純度與穩定性，為電能傳輸奠定極低失真的基礎。
中空導體 × NASA級工藝
SSS-40 MKII採用8蕊銅導線絞繞成一股，三相電各以六股S絞繞成一線，並在中心形成獨特的中空結構，這項「中空速導（Hollow Air Cable Design）」技術，靈感來自美國NASA的航電導體技術，利用「集膚效應（Skin Effect）」的特性，讓電流沿著導體外層流動，空心結構因此能增加有效傳導面積，並讓氣體流通以達到快速導電與穩定散熱的效果。這種結構不僅提升電流流速與穩定性，更讓能量輸出飽滿、細節豐富，聲音表現溫潤而充滿動態張力，讓你的聲音發燒、不發熱。八蕊六股的對稱式幾何絞繞設計，能有效抵銷磁場互擾、減少外部EMI/RFI影響，同時抑制線材本身的機械共振，使音場更深邃、背景更寧靜、定位更清晰。中空氣層亦形成天然的氣體介電結構，進一步降低電容效應，讓高頻延展更自然、能量傳導更線性。
多層介電結構，全面防護
三相空心導電銅線皆以LDPE包覆，其特性具備高介電強度、耐熱、柔軟、彈性佳及無毒環保等優勢，並以黑／火、白／水、綠／地三色區分。三芯之間再加入天然棉線條作為抑振緩衝，外部則經過多層防護結構：1.雙層絕緣紙：吸收振動並提升介電穩定。2.CPVC層：強化整體抗扭力與耐壓性。3.雙重屏蔽層：內層科技銅箔 + 外層高密度OFC銅編織網，形成完整的金屬介電屏障，有效隔絕EMI/RFI干擾，確保電能純淨輸送。4.外層黑色TPV包覆層：耐高低溫（-60°C~135°C）、抗油、抗氣候老化，並添加具遠紅外線特性的奈米功能粉末，進一步提升導電效率與抑振特性。TPV表層觸感細膩、防滑、回彈力佳，兼具橡膠與塑膠的雙重優點，同時為可回收、環保材質，呼應Monitor Acoustics的綠色製程理念。
專為極致聲音表現而生
SSS-40 MKII代表著Monitor Acoustics在導體結構上的又一次重大突破。表面上中空線與實線差異從七芯改為六芯，看似省下約七分之一的銅材，但實際上我們製作時線絲數並沒有減少，而是平均至六芯之中，表面看似輕量化、實則飽滿均化線身結構，整體的製程與細節是遠超以往的複雜。從線徑比例、捲繞方向、SZ絞合配比到後續的熱處理與成型工藝，皆是經過嚴謹的反覆調整。其中在捲繞技術部分，我們改變了作法、提供無與倫比的紮實形體，剝開後的超低含氧蕊絲銅（2.8ppm）中空線結構，不僅展現線條之美，更展現其結構的紮實無懈可擊。這條專線以NASA技術為核心、MA精工為靈魂，展現出前所未有的聲韻邸厚、能量密度與音場開闊感。無論搭配高階擴大機、電源分配器或牆內配線，皆能為系統帶來更純淨、更穩定的供電品質，讓音樂的細節、層次與動態真實重現，讓人徹底著迷。
＊若玩家以SSS-40 MKII自製電源線，可將屏蔽線併接地線，接於公頭地迴端，進一步強化地迴的電位釋放，與電源能量無阻傳輸。
FEATURES 特點：
導體結構：三相（水、火、地）採用 4.0mm² 6N LC-OFC 高精純銅（超低含氧 2.8ppm）
導體配置：8蕊銅絲 × 六股S絞繞 × 中空氣介電設計
介電防護層：八重結構（LDPE、棉線、雙層絕緣紙、CPVC、銅箔、OFC 銅網、TPV 外層）
外徑尺寸：14.5mm ± 0.2mm
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SSS-40 MKII – Indoor Three-Core Shielded Power Line (Bulk Reel)
The world’s only hollow-core, shielded three-conductor AC line — engineered to captivate the ears and calm the noise.
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Building on the proven success of our single-core hollow in-wall power lines (HU-165 MKIII and HU-220 MKIII), Monitor Acoustics pushes hollow-conductor technology into a new frontier: a purpose-built three-core AC line for high-end audio and professional power installations.
The new SSS-40 MKII is specifically developed for demanding audiophile systems, high-power amplifiers, and premium in-wall wiring where purity and stability matter most.
Each conductor begins with ultra-high-purity 6N LC-OFC copper (2.8 ppm oxygen content). Through multiple annealing cycles and precision refinement, internal metal stress is eliminated, resulting in exceptional conductivity, tonal purity, and long-term stability. This forms the foundation of ultra-low-distortion power delivery.
Hollow-Core Conductors × NASA-Inspired Engineering
At the heart of the SSS-40 MKII is a uniquely engineered hollow conductor structure:
- Eight copper strands form a single core
- Six S-twisted cores make up each phase (Hot, Neutral, Ground)
- The center of each conductor remains intentionally hollow
This design is inspired by conductor technologies used in NASA avionics. By leveraging the skin effect, the hollow structure increases the effective conduction surface area while enabling internal air circulation for rapid thermal stabilization.
The result: faster current flow, lower resistance, richer dynamics, and astonishing clarity.
The symmetric multi-strand geometry also provides inherent magnetic field cancellation, reduces EMI/RFI susceptibility, and minimizes mechanical resonance. The natural air chamber inside each conductor forms an ideal dielectric, lowering capacitance and preserving high-frequency linearity with ease.
Multi-Layer Dielectric Architecture – Total System Protection
Every conductor is individually insulated with LDPE for superior dielectric strength, flexibility, and thermal stability, color-coded for easy identification (Black/Hot, White/Neutral, Green/Ground).
Between the three cores, natural cotton fillers act as resonance dampers.
The outer structure features a meticulously engineered eight-layer protection system:
- Dual insulation paper – vibration absorption and dielectric stability
- CPVC reinforcement layer – increased torsional rigidity and pressure resistance
- Dual shielding –
- Inner copper foil
- High-density OFC braided shield
- TPV outer jacket – temperature-resistant (-60°C to 135°C), oil-resistant, weather-resistant, and embedded with far-infrared nano-powder for enhanced conductivity and damping
The TPV jacket provides a premium tactile feel with excellent grip, elasticity, and durability — all while remaining recyclable and environmentally friendly.
Engineered for Extreme Sonic Performance
While the SSS-40 MKII visually appears to have reduced its solid-core count (from seven-core to six-core hollow), the total copper mass has not been reduced. Instead, the copper strands are redistributed across the six hollow cores to achieve perfectly even density and a more balanced structure.
The result is a more complex, more stable, and more dynamically responsive conductor system.
From twist ratios to SZ-stranding geometry, heat treatment, tension control, and final forming — every step undergoes precision calibration.
Peel back the jacket and the ultra-low-oxygen (2.8 ppm) hollow-core LC-OFC reveals its uncompromising craftsmanship: structurally rigid, perfectly symmetrical, and sonically effortless.
Powered by NASA-inspired conductor science and shaped through Monitor Acoustics’ obsessive engineering discipline, the SSS-40 MKII delivers:
- A darker, quieter background
- Massive energy density
- Expansive and holographic soundstage
- Natural extension and micro-detail
- Explosive dynamics with zero harshness
Whether used with reference amplifiers, power distributors, or in-wall AC infrastructure, the SSS-40 MKII elevates the entire system with cleaner power, greater stability, and breathtaking musical realism.
FEATURES
Conductor Structure:
Three-phase (Hot/Neutral/Ground), 4.0mm² 6N LC-OFC copper, ultra-low oxygen (2.8 ppm)
Conductor Geometry:
8 copper strands × six S-twisted bundles × hollow-core air dielectric
Dielectric & Protection:
Eight-layer architecture including LDPE insulation, cotton damping, dual insulation paper, CPVC layer, copper foil, OFC braided shield, and TPV-FIR outer jacket
Outer Diameter:
14.5 mm ± 0.2 mm