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*Therium Series Pure Silver OCC Litz (cotton core, industry first stranding, 4 / 8-wire) reference CIEM / IEM replacement cable

*Therium Series Pure Silver OCC Litz  (cotton core, industry first stranding, 4 / 8-wire)  reference CIEM / IEM replacement cable
*Therium Series Pure Silver OCC Litz  (cotton core, industry first stranding, 4 / 8-wire)  reference CIEM / IEM replacement cable *Therium Series Pure Silver OCC Litz  (cotton core, industry first stranding, 4 / 8-wire)  reference CIEM / IEM replacement cable
Brand: Norne
Product Code: TheriumReferenceSilver48
Availability: In Stock

Available Options

* Length / Wire count:

* IEM Type:

* Termination:

* IEM Splitter:

Eidolic New 2016 model 2-pin / mmcx TeCu upgrade:

   - OR -   


NOTE:  For all 2-pin selected cables, new model Eidolic 2-pin PEEK TeCu with locking barrel is currently a free upgrade.  For all Shure/MMCX selected cables new Eidolic Rhodium plated TeCu is also a free upgrade to add.

Truly the ultimate in purity utilizing best possible metal on the planet, the Therium Reference Series contains the highest purity silver occ litz. Exhibiting our new specialized "variance" stranding configuration (a first ever for occ litz, 2015), the Therium reference replacement cable also uses a tubular design with a 100% cotton core.  Our cotton core not only keeps the strands in the desired tube shape (where the current prefers to flow), but also deadens any internal mechanical vibration of the strands without affecting flexibility.  One of the only cables out there using the absolute top pure cotton possible for cores, we achieve the most neutral triboelectric value possible internally.  The Therium reference pure silver occ litz replacement cable truly enables any iem / ciem to perform to its maximum potential while also having the side benefit of being extremely comfortable / flexible (in 4-wire or 8-wire configuration).   Boasting end-game detail, focus and precision without sibilance or fatigue, the Therium premium occ litz pure silver cable is certainly an unstoppable force and the best ciem / replacement cable possible today.  


Shipping by default with the highest end and best quality ciem / iem plugs one earth (Eidolic).  

The latest of which is a 2-pin plug (model Eidolic E2-78CU) that utilizes pins made entirely of Tellurium Copper for a 93% IACS rating over the typical brass in all other plugs.  Select the checkbox if you prefer TeCu versus the standard Eidolic 2-pin plug.  These plugs work for nearly all 2-pin type iems (0.78mm), with very few exceptions.

Shown below are the new Norne signature design aluminum micro splitters.  Completely custom made from the 
ground up starting with our exacting dimensions for portable cable use.  We utilize one the of the best machining 
companies to produce our splitters to our exact specifications.  We only want the best to be part of our cables and in our view the production 
method that goes into our splitters is superior to any other method of producing a metal based splitter.  
Ultimate fine sandblast finishing, cnc engraved logo, special permanent color fill options, this is something that can only 
truly be done with the best equipment and processes.  The perfect finishing touch to a fully custom high end pure silver occ litz replacement ciem / iem cable.

Makassar Ebony & Caribbean Rosewood mini splitter available, as well as our mini triangle splitter in premium precious metal options.  




Selecting 2-pin (0.78mm) works with:

Westone (UM3RC, UM3X, W4R, ES Series, UM2 Series, AC Series), 1964 Ears, Unique Melody, Alclair, Earsonics, JH Audio, Stage 93, Aurisonics, Heir Audio, Future Sonics, Alien Ears, Dream Earz, Clear Tune Monitors, Rhapsodio, Tralucent Audio, Spiral Ear, Vision Ears, Rooth, Noble Audio, InEar, Lear, Rhines, CanalWorks, EarWerkz, InEarz, Advanced Ears, Lime Ears, Kozee, Eartech Music, Cosmic Ears, and more 

Selecting MMCX works with:

Ultimate Ears (UE900), Westone (W10, W20, W40, UM PRO 10, 20, 30, 50, AC20, AC10, W60, ES50, ES30, ES20, ES10), Shure (SE215, SE315, SE425, SE535, SE846), Sensaphonics, InEarZ, Audiofly (AF120, AF140, AF160, AF180), VSonic (VSD3S), Ultrasone (IQ), JVC (HA-FX850),  Fidue (A83) and more

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Why OCC?

Used throughout the high end audio industry in most flagship cable products, occ provides the superior quality copper and silver possible today.OCC (Ohno Continuous Cast) is the name given to the casting process developed to help defeat annealing issues and virtually eliminate all grain boundaries in copper or silver with a unique patented process. The OCC casting method uses specialized heated moulds in order to draw a single crystal up to 125 meters in length. With only a single crystal in very long lengths, there is an unimpeded free path for the best possible signal transfer. Along with this superior single long crystal structure, OCC provides copper and silver with the least possible oxides and other impurities. 

Why Litz?

With each strand utilizing a razor thin enamel coating, Litz based wire provides a cable that will last a lifetime (will not oxidize).  Further with each strand acting independently until joining at the termination point, the design negates any bad effects typically associated with normal stranded wire (skin effect, proximity effect, etc.).  As another side benefit durability and flexibility are both increased.  

Combining OCC (purest metal) with Litz design you really have an end result that is the ultimate cable possible today.  

Why Pure OCC Copper, Silver and Silver coated Copper are the absolute best

We go by the numbers using science as the guideline.  All metals have a conductivity rating as describe by the International Annealed Copper Standard (IACS).  All metals are compared against Copper at the 100% IACS rating mark.  OCC Copper is rated at 103% IACS and Silver 106% IACS.  Gold is rated at 73% IACS or 27% lower conductivity as compared to standard OFC/ETP copper (given the exact same amount of each metal).  Therefore it would take a significant amount more Gold to achievethe higher conductivity rating of copper.  

We will never release anything less than OCC copper and will never release any alloys. So what is an alloy?  An alloy is defined as a mixture of two or more different metals, making the original metal less pure with worsened electrical performance than the original pure metal.  An alloy of 1% gold with 99% silver would yield around 89% IACS rating or 11% less conductivity than standard OFC/ETP copper.  While cables made of metals/alloys that are inferior to copper may alter the sound in a specific way, that is not our goal.  Norne Audio will always seek to utilize the absolute best materials (going by the numbers) in our pursuit of the absolute best cables possible today.  We believe that the cables with the best specifications yield the best possible sound of ones system.


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.  

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