Stage III Concepts Proteus

Statement Silver/Palladium Power Cables

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More than 20 years ago, Stage III Concepts brought to market the very first silver ribbon/air-dielectric cable specifically for audio power delivery. Its evolution recently culminating in their flagship power cable, the A.S.P. Leviathan, considered by many to be one of the best audio power cables in the world. The new A.S.P. PROTEUS maximum current, precision power cable borrows many essential elements from the Leviathan along with some from the award winning A.S.P. Medusa speaker cable.

The A.S.P. PROTEUS employs the same expanded cross-section, heavy gauge AeroStrandUltra™ conductors as the Leviathan. The proprietary radiation-invulnerable shield blocks all external airborne interferences and is further enhanced by extreme mechanical damping, similar to that found in the Medusa speaker cable. The conductor arrays in these cables are fully encased in their granulated H.D.A. (High Density Alloy) which is ideally suited to damp and completely nullify induced vibrations that commonly affect audio cables running along the floor. Its unique and carefully calculated design makes the PROTEUS one of the only audio power cable designs in the industry that is tailor-made for power distributors/conditioners, amplifiers or any high-power component that is positioned on or near the floor of the listening area.

PROTEUS power cables are a genuinely revelatory experience: utterly silent, yet coherent and powerful. Yet another inimitable Stage III cable that is painstakingly assembled entirely by hand with 100% proprietary elements, and absolutely no commercially produced or “off-the-shelf” components. A reference-level technological work of art to unveil the sonic truth your system is truly capable of.


Stage III Proteus schematic


Product Specification

Conductors 4×2 heavy-gauge Cryo-treated, custom slow-extruded silver/palladium AeroStrandUltra™ ribbon conductors.
Dielectric Air dielectric with FEP Teflon air-tubes. Multi-layer shield with H.D.A. 100% radiation invulnerable foil + plated copper braid.
Geometry Geometry consisting of 4 individually damped and shielded stacked dual conductors in a quad helix configuration + heavy gauge plated silver ground wire shielded with silver plated braid.
Construction Multi-layer construction with soft-polymer tubing + HDA alloy/ceramic/ferrite extreme mechanical damping/shielding layer. Custom, hand made proprietary polymer/fibre plug + cable housings.
Connectors Exclusive custom made Cryo-treated HYPERION Ceramic IEC and Australian Standards Plug with carbon fibre housings, Silver/Copper alloy Palladium plated electrical contacts and ceramic-infused polymer insulators.
Power Capacity 60A