Optimized 2.1 Configuration:  When connected with a pair of FM Series speakers and a Fusion  Multi-Zone™ stereo with DSP, you have the option of creating a 2.1 audio  zone to simplify installation and reduce system cost by adding bass  without the need for an external amplifier.
  
 
Quality Audio Reproduction: Enjoy quality low frequency audio at any volume level.
  
 
Innovative Design Aesthetics: Designed  with a low profile, near-flat installation for a visually appealing  finish, the FM Series will complement the aesthetics of any vessel.
  
 
Non-Intrusive Mounting System: The FM Series uses 'speaker legs' that keep the subwoofer in place without creating any screw holes to your vessel.
  
 
True-Marine™ Designed and Engineered:  Extensively tested to perform in the harsh marine environment, the FM  Series carry an IP65 weatherproof rating along with True-Marine  accreditation.
  
 
Designed To Comply With ISO12216: Tested  to international standards for pressure and watertightness, it  recognizes the FM Series are designed and built to the highest industry  standards for quality and robustness.