For a headphone enthusiast, the audio cable on the market, I think the main can be divided into two categories, one is HiFi equipment used, including power cord, speaker cable, the same signal line, USB cable, coaxial cable, etc. The other is the upgrade line of headphones, including the most popular IEM line. In fact, the wire products on the market are varied and colorful, what is OFC, OCC, PCOCC, PCOCC-A, gold-plated, silver-plated , sterling silver, or alloy wire, the amount of materials used, difficult to remember and difficult to understand, how many N number? How many cores? How many twists? AWG number? What is the plug plating? The terminology is complicated. In addition to listening to the salesperson's statement, most players simply can't start. This sharing, I hope to introduce you to some mainstream wire conductors and names on the market through a simple list:
- Oxygen Free Copper (OFC): The most basic audio wire requirement - single crystal copper Ohno Continuous Casting (OCC): full list of crystal oxygen free copper, by Dr. Ohno of Chiba Institute of Technology, Japan Successfully developed in 1986, it is a processing method for producing copper wire. It is mainly produced in Japan - OFHC: Oxygen-Free High-Conductivity, Chinese name is oxygen-free high-conductivity copper, which directly represents 4N copper purity - MCC: Mono -Crystal Copper, the general name for single crystal copper, MC Silver is single crystal silver, including two treatment methods LGC (Long-Grain-Copper) long crystal copper and LCC (Linear-Crystal Copper) single crystal copper, produced separately from all over the world -PCOCC: Full name Pure Cupper Ohno Continuous Casting Process, Chinese name å˜ Crystalline high-purity acid-free copper, single crystal copper developed by Furukawa Electric, Japan, has been discontinued - PCOCC-A: Japan Furukawa Electric Co., Ltd. The enhanced version of crystal copper has also been discontinued. It is popular because of its high quality and is used by major audio brands. μ-PCOCC: A processing technology developed by Japan Furutech A special superconducting treatment for PCOCC - Alpha Nano-OFC: developed by Furutech, Japan, and the OFC is processed by Alpha and Nano, including ultra-low temperature treatment, degaussing treatment, and nano-gold-silver water-UP-OCC: Taiwan Single crystal copper wire produced by Neotech, UP is the abbreviation of Ultra Pure. Rectangular OCC: single-core copper wire in square core shape, mainly produced by Taiwan Wanlong Wire and Cable Co., Ltd. (Neotech), and spiral core Version (Helical Rectangular OCC), higher grade -102 SSC: Japan's Oyaide's own research and production of copper conductors, the factory claims to be better than the previous PCOCC-A - PC triple C: full name Pure Copper Continuous Crystal Construction, Chinese name continuous crystal forged pure copper, developed by FCM Co., Ltd., assisted by Furukawa Electric, Acoustic Revive and Furutech processed and adopted separately, is the chemical symbol of the latest conductor technology - Cu / Ag: Cu = copper metal, Ag = chemical symbol of silver metal - N number: N = "Nine", is the meaning of 9 used to describe the "purity" of various metals, such as the basics of copper The value is 99.9%, there are 3 "9", so it will be called 3N, and the purity of OFC is generally 99.99%. 4N is the most basic audio copper wire. 6N or 7N is high-purity high-quality copper wire. The manufacturer will introduce 8N. Because it is difficult to maintain such high purity in daily environment, it is only used to describe the purity at the factory. In addition, the highest purity silver wire can be produced at 5N.
- Wire core: refers to the number of metal cores in the wire rubber. Take the power line of Hong Kong as an example. There are three phases of fire wire, neutral wire and ground wire, so the power cable will basically be a three-core structure, each in a separate line. Then subdivide the single core wire and the multi-core wire. In addition, the earphone wire often hears the Taiwanese name "shares". The stock = core - Litz wire (Litz): is a wire structure, with multiple pieces Enameled wire stranded, also known as "strand", is the mainstream structure of the IEM upgrade line, mainly to reduce the skin effect of the wire (Skin Effect)
-Number of twisted wires: The number of twisted wires is described. The most popular one on the market is the 4-strand wire. The basic configuration is that the left channel is twisted and twisted, respectively, the positive and negative poles, the right channel is also twisted, and the 2+2 is the 4 twisted wire. The road is divided into positive, negative, and ground, which is 3+3 or 6 twisted wires. The 4 twisted wires doubles into 8 twists. The twisted wires can effectively reduce signal interference. The 4 twisted wires and the 8 twisted wires often appear on the IEM line. -AWG (American Wire Gauge): used to indicate the diameter of a single line, that is, the number of cores that can be placed in the same area of ​​the surface. The higher the number, the more the number of cores that can be placed. Therefore, the higher the number, the younger the line, the thicker the number is, the thicker the line is. It is enough to know that this rule is sufficient - insulation and shielding: the PVC glue is called "insulation", and the metal layer is called "shield". Packed two layers called double shield, and so on
Then the problem is coming~
Which kind of conductor is the best? Which structure is the best?
Is a single core good or a multicore? What metal plating is best? Is it the thicker the better?
Buying a strategy is the most important thing for enthusiasts!
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