Vibrating sound film size determines the size of the size of the moving coil unit. The larger the size of high temperature voice coil diaphragm fluorescence bonding glue fixed, relatively speaking, be able to tune out the better sound quality, but the sound radiation and resonance due to increase in size. Generally the larger the size of the relatively easier bass will be better, the smaller the size as Φ3mm ~ 6mm voices tend to be relatively high frequency. Common diameter Φ3mm ~ 57mm, Φ16mm following generally used in flat plug and ear headphones, Φ20 ~ 30MM generally used in the headphones into the headphone and medium-sized hanging headset, Φ40 ~ 57MM typically used in medium and large headset the headset. Supply Sunbeam G01-1009 / 2009 of the diaphragm coil UV adhesive glue. Provide high-temperature 150 ° sound film adhesive glue adhesive fixing glue, glue adhesion supply starting point. NdFeB magnets: NdFeB material (RE) and neodymium nickel and cobalt and other rare materials at high temperature sintering plating NdFeB magnets made its performance far superior to magnetic iron oxide is currently the most used on the horn. magnet. Magnetic field strength in the same volume than the strength of the magnetic iron oxide more than 10 times. Its characteristics: the same flux of its small size, big power G01-1001 adhesive fixed plastic diaphragm, wide frequency range, there is basically HiFi headphones with such magnets. The drawback: Rare earth is widely used in high-tech fields (military, electronics, etc.), but the last few years a very strict government controls the amount of plastic vibrating membrane bonding glue fixed, and now prices have soared. Supply PET / PEN / PEI / PI coil UV adhesive glue G01-2009, supply coil bonding LCP / PEEK / PC / PPS / PAR pink easy to check UV curing adhesive; bonded aluminum voice coil G01-1009, titanium alloy / beryllium alloy coil G01-2009UV sound film adhesive glue; Jia Xin Xin voice coil provides high-end headphones sound film bonding glue, G01-1001,1007,1009,2009; supply of fixed voice coil wire bonding glue GUV-6009BJ Xin Jiaxin Electronic _ plastic vibrating membrane bonding adhesive fixing glue _ fixing glue provided by Jia Xin Xin Electronics. Search for "electronic materials, adhesives, optoelectronic display products, solutions and touch fitting fitting equipment" fly suppliers, network operators choose to have a full alliance certification: Shenzhen City Jia Xin Xin Electronics Co., Ltd. (www.szxinjiaxin.com ), honest and reliable, "business alliance customer service" on page now click on live chat with us now!