国产男女视频网站_亚洲国产AV日韩AV二区_国产精品天仙tv在线观看_国产精品视频更新_櫻桃視頻免費觀看視頻大全_国产美女露脸作爱视频_4399手机在线观看免费_欧美freesex潮喷黑人又粗又大_国产高清视频区三区_中日韩亚洲欧洲av

The M-series speaker products, all of which use a 44 core tweeter driver and a large number of bass units, make the F-series products the most cost-effective product in multifunctional product applications, ensuring stability in the thousandths. This series of products has a complete selection of sizes and is equipped with a super heavy subwoofer to choose from. The subwoofer unit configured in the 18 inch subwoofer has a sensitivity of at least 2.5dB higher than many individual speakers in the 40Hz-80Hz frequency band. Calm Audio also produces unexpected sound effects because of its independent research and development of speakers, which strictly requires each individual to perform at its best.

This series of products can be used as a super cost-effective choice for entertainment, multifunctional halls, conferences, roadshows, and band sound reinforcement.