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Speaker Cable Stage III Concepts MEDUSA
Description
Speaker cable with vacuum dielectric and palladium-silver alloy ribbon conductors
The Stage III Concepts A.S.P. Reference Medusa is a reference-class speaker cable and the only one on the market to employ a true vacuum dielectric instead of conventional insulators or inert gases. Its inner core of nylon and FEP Teflon is evacuated to 675 mm Hg, minimising the impact of dielectric absorption on the transmitted signal. The signal path consists of eight cryogenically treated AeroStrandUltra™ ribbon conductors made of a silver-palladium alloy per channel, with a total cross-section of 7 AWG, arranged in a double quad-helix geometry (2 × 4 conductors).
The construction places exceptional emphasis on mechanical damping and noise rejection. The multi-layer jacket contains ferrite, ceramic and high-density alloy (HDA) granules, which serve simultaneously as an anti-resonance mass and a shielding barrier. This is followed by 100% radiation-resistant HDA foil and a silver-plated copper braid with four individually shielded conductor groups. Together, these measures suppress EMI/RF interference as well as micro-vibrations that would otherwise modulate the transmitted signal.
The large conductor cross-section keeps DC resistance very low, which directly influences the damping factor at the loudspeaker end and translates into firm, dynamically developed bass without compression. The ribbon geometry and the palladium-silver alloy contribute to precise instrument localisation and clearly readable soundstage layering; thorough shielding lowers the noise floor to a level where decays and spatial cues emerge from the recording.
Every piece is built by hand, with no mass-produced parts, in a jacket of nylon-fibre-filled polymer and woven carbon. The standard termination consists of exclusive solid silver spades with variable sizing designed for high currents, and the entire cable undergoes double cryogenic treatment. Owing to the granulate layers the cable is very heavy, so the height and placement of components must be taken into account during installation.
Key features
- Vacuum dielectric: Core evacuated to 675 mm Hg
- Conductors: AeroStrandUltra™ silver/palladium ribbon, 7 AWG
- Geometry: Double quad-helix configuration, 2 × 4 conductors
- Shielding: Ferrite, ceramic and HDA granules, HDA foil, copper braid
- Termination: Solid silver spades, double cryogenic treatment
Specification
| Shield | H.D.A. (High Density Alloy) 100% fóliový štít odolný voči radiácii + postriebrené medené opletenie |
|---|---|
| Conductors | 8× kryogénne ošetrené strieborno-paládiové pásikové vodiče AeroStrandUltra™ s rozšíreným prierezom na kanál (celkovo 7 AWG) |
| Dielectric | Vákuové dielektrikum; vnútorné jadro z Nylonu a FEP Teflónu (vákuované na 675 mmHg) |
| Geometry | 2 × 4 vodiče v dvojitej quad-helix konfigurácii (4 individuálne tienené skupiny) |
| Damping | Viacvrstvová konštrukcia s granulami z feritu, keramiky a zliatiny s vysokou hustotou |
| Connector Housings | Ručne vyrábané puzdrá z polyméru plneného nylonovým vláknom a tkaného uhlíkového vlákna |
| Terminations | Masívne strieborné vidličky s variabilnou veľkosťou pre vysoké prúdy |
Stage III Concepts
The American company Stage III Concepts, founded in 1996 by the passionate audiophile and engineer Luis de la Fuente, represents the very pinnacle of the ultimate high-end cabling category. The brand has made history as the world’s first manufacturer to use pure silver ribbon conductors and air dielectric technology in its cable designs. Stage III Concepts’ philosophy rejects any form of mass production and relies exclusively on handcrafted manufacturing, proprietary patented solutions and uncompromising materials that ensure signal transmission without any electrical or mechanical distortion.
The brand’s comprehensive portfolio includes speaker, signal, power and digital cables designed for the most demanding audio systems on the planet. Stage III Concepts products utilise unique cryogenically treated monocrystalline silver conductors, advanced shielding comprising Teflon-air tubes, and solid protective sheaths filled with granules and mats that dampen micro-vibrations. The result is an extremely low noise floor, surgically precise spatial localisation, enormous dynamic headroom and sonic neutrality that allows the music to retain its full emotional impact. For listeners seeking a cable connection without any technical or acoustic compromises, Stage III Concepts cables represent the ultimate solution.
Manufacturer information (GPSR)