Kenwood KMR-D382BT Marine Subwoofers this M7-12IB is designed to

this M7-12IB is designed to operate without a dedicated enclosure

You can also adjust the front resolution from 4K at 30fps to 2K at 60fps for smoother videos and easier license plate reading

9 dB SPL Effective Piston Area (Sd) 81

Replacement Clamp Ring set for W7 & W7AE Subwoofers

Kenwood KMR-D382BT Marine Subwoofers this M7-12IB is designed toProduct highlights: General Features: marine CD receiver with built in Bluetooth plays CDs, CD Rs, and CD RW discs plays high res FLAC music files on USB devices glare resistant 1. 5 line display with easy to read white background and variable color illumination Smartphone Features: built in Bluetooth (version 4. 2) for hands free calling and audio streaming with dual phone connection Bluetooth audio AAC codec support dual phone connection iPod iPhone