18-Inch Passive Subwoofer 900W Bass Reflex Subwoofer Box Design

Concord Sound is a five-in-one professional audio manufacturer and system service provider integrating researching & development, manufacturing, electro-acoustic experience, technical training, and sales. Concord Sound relies on technology innovation to provide customers with a full range of professional audio solutions and service experience.

We have modern standard workshops and an excellent team of technology, management and staff, with strong R&D capabilities and production capabilities, and a production base of over 12,000 square meters. At the same time, we have achieved numbers of invention patents and utility patents, and have been rated as "high-tech enterprise", "little giant in scientific and technological innovation", "industry leader 2021" and so on. We have our own anechoic chamber which conforms to the ISO/IEC17025 standard, and equipped with world-class acoustic test systems such as Klippel, Clio, SoundChink, and LMS. Advanced production equipment, precision measurement, mature aging test technology, audio analysis technology, etc. are the core technologies in the industry.

Concord Sound is committed to strict quality control and conformed to CE, ROHS, 3C, ISO9001, ISO14001, and ISO45001. Since the corporation was founded, we have insisted on serving the market with independent R&D, and original high-quality products. We have our own brand, VATASA is professional audio, while VA is line array system for touring outdoor concerts, which are established in the EASE Focus system database for our professional customers.

Never forget why you start and move forward!

Concord Sound has been deeply involved in the industry for 26 years, backed by a profound historical precipitation and a high-level, sophisticated and cutting-edge R&D team. While deeply integrating industry resources, it adheres to the concept of technological innovation, and provides users with a full range of listening experience with high-quality products, advanced systems and excellent services.