Flagship High-Purity AC Power Solution for Reference Audio Systems
The ESOTERIC 7N-PC9900 MEXCEL is a reference-grade power cable engineered for uncompromising audio performance in high-end systems. Designed as the flagship model in the MEXCEL series, it reflects ESOTERIC’s philosophy of absolute signal integrity, where every material choice and structural detail is optimized to preserve purity from the power source to connected components. This cable is intended for audiophiles and professionals who demand maximum transparency, stability, and resolution from their audio equipment.
At its core, the 7N-PC9900 MEXCEL is built around ultra-high-purity 7N (99.99999%) copper conductors, originally developed for semiconductor-grade precision requirements. Combined with ESOTERIC’s proprietary engineering approach, the cable ensures extremely low loss transmission and a stable impedance profile across a wide frequency spectrum. The result is a remarkably clean and consistent delivery of AC power, allowing connected audio components to perform at their full potential without interference or degradation.
A defining element of this model is the advanced MEXCEL conductor architecture. By utilizing individually insulated strands arranged in a specialized litz configuration, the design significantly reduces the skin effect that typically limits high-frequency current flow. This structure increases the effective conduction surface area and ensures uniform current distribution, resulting in improved electrical efficiency and reduced signal distortion. In practical use, this translates into greater clarity, refined dynamics, and a more natural soundstage reproduction.
The cable also incorporates ESOTERIC’s Stressfree annealing process, which minimizes internal stress within the copper crystalline structure. In combination with D.U.C.C. (Dia Ultra Crystallized Copper) technology, the conductors achieve enhanced grain alignment and superior conductivity stability. This meticulous material refinement ensures that electrical energy is transmitted with minimal resistance and maximum coherence, even under demanding system loads.
To further enhance performance, the 7N-PC9900 MEXCEL features a multi-layer anti-noise construction system. Specialized shielding, including carbon fabric sleeves and a polyurethane-coated copper braid, effectively suppresses external RF interference. The dual-layer insulation system combines anti-resonance polyolefin with a hybrid compound infused with tungsten, amorphous materials, and carbon powder, providing exceptional dielectric stability and vibration damping. Additionally, precision-machined aluminum connector housings and rhodium/silver-plated beryllium copper contacts ensure both mechanical durability and optimal conductivity under heavy load conditions.
Overall, this power cable is designed not simply as an accessory, but as a critical component in a high-resolution audio chain, where power purity directly influences sonic realism and system performance.
Specifications:
- Conductor material: 7N ultra-high-purity copper (MEXCEL / D.U.C.C. technology)
- Ground conductor: 4.5N high-purity copper
- Construction: Multi-strand litz structure with individually insulated wires
- Shielding: Polyurethane-coated copper braid + carbon fabric anti-RF sleeves
- Insulation: Dual-layer polyolefin hybrid dielectric system
- Connector material: Beryllium copper with silver and rhodium plating
- Connector housing: Precision-machined aluminum with carbon-fabric damping sleeves
In the box:
- ESOTERIC 7N-PC9900 MEXCEL Power Cable (1 unit),
- Protective packaging and storage sleeve,
- User documentation / technical leaflet.
