The Ultimate single speaker unit available for your tower. 

Available in a 10 inch Mid Bass at only 7 lbs, or 10 inch Pro Audio Coax with a conical Horn Loaded Compression Driver at only 13 lbs. As with the NVS Prodigy and NVS Deviant, the hang height is only 8.6 inches. Black is the standard color but is available in virtually any standard color to match your boat.

Modus Mid Bass $999/pr
Modus Coax $1299/pr