Lavricables has divided its cables into 4 different categories. The first and most budget-oriented one is called Reference Line. Reference Line is made of solid-core silver and has a purity rating of 5N. This line-up utilizes Teflon for RFI and EMI rejection. Again, it is difficult to measure the audio improvements of this process and results are anecdotal. Chapter 7: Manufacturer Claims

With GuCraftsman's cable with the UE900s, I heard a staging improvement along with tighter bass, fuller mid-bass and the best part - a much clearer presentation all across the spectrum with supreme instrument separation. But it is a very neutral sound - nothing over emphasized (but of course its job is to retain the character of your IEM without making any noise - and it does it better than any that I have heard before). Still, you may be surprised what an upgraded IEM cable can do. Again, note that this was my first try with Gu's cables and so it was the cheapest too. But I believe it made small yet noticeable upgrade in the sound. A very common feature touted in copper audio cables is the use of Oxygen-Free Copper (OFC) that has been refined to reduce the level of oxygen in the copper to 0.001% or below. C10100 copper, a special variant, is a highly refined (and very expensive) copper that is sometimes used in premium audio cables. It has the ability to remove any silver impurities and reduce the oxygen to 0.0005%. However, it yields only a one percent higher conductivity than standard OFC. This is often a topic of debate – if oxygen content or impurity removal is in any way audible. Metal Colors and Its Impact on Sound My DIY silver wire cables with gold 2.5mm headphone connectors. cores of 0.08mm*19strands (equivalent to 27awg per core), PVC sleeved, equivalent to 24awg (roughly) per signal (2 cores), of 6N OCC copper, or silver plated 6N OCC. measured dc resistance of the three cables (L+, R+, L+, R-, in mΩ), and weight, plugs and strap included, of two of them:about the color of copper variant, i might prefer the orange tone of naked copper, but this moderately shiny light brown is ok. it's between the naked copper and the dark brown we are seeing lately.

You must return an item in the same condition as it was received. You must also include, in the same condition as it was received: gucraftsman copper 6n occ 8c (brown,alo,MV)....136/142..143/143..127/133..130/135..[26.8] (mmcx/2.5mmTRS)

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Is it a coincidence that the tonal qualities of instruments are also linked to wires of the same color and finish? It certainly seems like there may be expectation bias at play. Chapter 5: DIY Headphone Cables A photo of my DIY cables using Mogami microphone wire, Neutrik Reen 3.5mm stereo connector, 2.5mm headphone cup connectors, paracord sheathing and shrink wrap. If waiting hundreds of hours for a cable’s dielectric to become properly ready to transmit audio seems a bit far-fetched, the process of cryogenically treating cables may be too much for you. It typically consists of applying liquid nitrogen vapor to chill the cable to about -300 degrees Fahrenheit. This is done over many hours (or days) and the cable is slowly allowed to return to room temperature. Photomicrographs of Materials Before and After Cryogenic Treatment from Pearl Audio this list pretends to be a compendium of recent cables, which provide good value (affordable decent quality). most are chinese (chi-cables). i've tested them. xduoo x20 balanced with toneking t4, and zishan dsd ak4495 + ghostaudio miniA1 amp + he400i (single end).