**note, not for use with ALO CDM due to recess**
Eidolic Carbon Fiber 2.5mm TRRS plug - Version 2
Perfect size and shape. The 2.5mm connector must be a perfect fit for the exacting specifications of A&K, Onkyo and others. With a streamlined 10mm barrel diameter that will fit very compact jack layouts, but a 7.0mm rear opening will fit the vast majority of cables. The flush front face allows dimensional stability when mated with the music player, preventing jack stress.
Ideal installation conditions. The solder contacts inside the plug are thoroughly insulated and properly spaced to allow effortless cable installation. While all 4-contact plugs require extra attention to install, there is ample room inside the barrel so that your cable can be soldered with less difficulty than before. With version 2, the area around the solder contacts is expanded to be as spacious as the 2.5mm “spacious barrel” connectors, while the rear opening is also nearly as wide, at 7.0mm. The barrel is treated to ensure its interior is nonconductive, and the plug avoids the use of magnetically charged materials wherever possible.
The best metallurgy for each design. A high-conductivity, high strength combination of gold and brass is employed for this connector. Superior plating thickness and complete plating of all plug surfaces set this connector apart.
Unique barrel aesthetics. The Eidolic 2.5mm balanced plug for Astell & Kern / Onkyo DP-X1 / Cowon is incredibly light and compact due to the choice of materials, which also confer a near-indestructible exterior. The anodized aluminum shell is accented with our new black carbon fiber with blue metallic filaments, and the metal surfaces are textured with a proprietary process that yields a tough, matte finish that sparkles in the light. The classic gray Eidolic logo is screened and heat-cured onto the upper area of the barrel. The exterior is near impervious to everyday wear and tear.
Please watch the above animation if you prefer a quick visual overview.
IACS (International Annealed Copper Standard)
The IACS rating is the metric used to describe a metals conductivity as compared to the standard of copper.
First take a look below at pure metals conductivity ratings.
(1) OCC Pure Silver - 107%
(2) OCC Copper - 103%
(3) Copper (common grade) - 100%
(4) Gold - 73%
Silver is the best there is, in pure form, period.
If you take a 1"x 1"x 1" cube of pure silver and compare its conductivity to an identical 1"x 1"x 1" cube of gold, the gold is considered 32-35% less conductive than the pure silver.
An alloy, by definition, is less pure than the original pure metals it is comprised of. Alloys are in existence largely for strength / hardness properties and are not meant for high end audio cables. When you alloy a metal, say gold with silver, you quickly decrease its purity and IACS rating. Even at just 1% gold alloyed with silver the IACS rating drops down well below plumbing grade copper. Alloys in the audio world came about purely as competition increased and there was desperation for new ways to try and market a cable to the uneducated masses.
Norne Audio will always utilize the purest form of a metal and will always use pure silver occ litz, pure copper occ litz, spc occ litz or mixes thereof. Our goal is the design that possesses the absolute top specifications of the highest possible quality.