Blackline speaker is a British Martin brand. Blackline professional sound system has been devoted to the research and application of indoor fixed installation engineering, and successfully developed a variety of series of speakers, professional power amplifiers and digital speaker processors for the application of hall slow rolling and room HI/K system.

Blackline Speaker Among them, the professional speaker products adopt the famous Italian B&; C provide the most mature and stable cutting-edge technical data, and at the same time introduce and absorb foreign top speaker system technology (including supporting digital speaker processors), and optimize the links of supply, R&D, manufacturing, sales and other environments with good resource system and application ability.