Befere we deliver the tubes we will first let tubes working on the tube amplfier first incase of hum and noise. Shuguang Treasure Series 300B-Z "Super Alloy" technology, firstly used in aviation, aerospace, military, and high-tech areas, was adopted to improve the electronic emission capabilities and current stability of electron tubes. First Application of the "High Polymer Compound (HPCC carbon polymer composite)" technology to enhance the greater concentration of and maintain the flow the electronic stability. The key assembling process was operated by a small number of senior technicians with more than 30 years of working experience by hand, going over 100 procedures to achieve accuracy and consistency. In all, Treasure makes a perfect interpretation of the peaceful and relaxing music.

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