Features: 1. Compact vented sub-bass
2. Direct radiating Dual 18" (460mm) sub-woofer
3. High temperature 4" (100mm) voice coil
The U218BII provides deep and punchy bass (down to 35HZ) suitable for all club applications as part of the U compact system.
Factory Introduction:
FDB Audio Manuafacture Co., Ltd is specialized in researching, developing and manufacturing Pro Audio products. The main products are professional transducer (HF drivers&woofers0, speaker cabinets and electronis prodcuts like amplifiers and procsessors.
FDB Audio adopts world's top-aided software and advanced technology, owns advanced production equipments and testing machines, establishes corporation development mechannisms with a number of world top-grade materials and accessories manufacturers. Some important materials are imported from abroad, like voice coil, diaphragm and paper cone.
FDB Audio has establisehd and strictly enforced the standard quality management system in accordance with ISO9001:2008. "Strictly enforce sound process and standards, full quality control and customer satisfaction" is the quality policy.
Mr.Harry Xia is the boss of FDB Audio, graduated from the Physic Department of Zhengzhou University. He is an engineer with 25-year-experience. He onced worked at the R&D department of the state-run speaker factory in Henan province for 3 years after graduating from university, then worked for a Taiwan speaker factory in Guangdong province. After that, he joined Elder Audio as the chief enginner, factory manager and the shareholder for over 9 years, where he cooperated with Thomann and Preol to develop new models together. He has gained two national registered patents for his design of compression drivers and horns.
Through 10 years' effort, FDB Audio had acquired good feedbacks from domestic and overseas markets. The customers said " The quality is very stable, reliability and consistency are very good."
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