1. Used RCA connectors by U.S, which is made of copper-plated plug, metal shell, and advantages of metal shell can be shielded from external interference. Eddy design gold plating connector makes it more stable to be connected on the device to insure high quality transmission.
2. Used genuine 99.99% high purity oxygen-free copper audio digital coaxial lines , whichspecifically designed for subwoofer audio equipment and music equipment. This line have a more high toughness engineering plastics than ohters , it can imporve the resilience and shielding properties . It has excellent shield performance and the effection of sound is particularly strong
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3. Strict quality control system --- Only the products pass through three quality inspects and nine performance testings that will come out to the market.
4. Use containing 3% silver Senju solders soldering.
5. External plus a network of high-density shock as protection.
6. It is made by manual .
7. Internal Resistance: 75 Ohm