2009 Marquis 500 Sport Coupe. Well Maintained, Turn Key. Only 450 Hours on IPS 600s. Triple IPS 600s with Joystick Control - Additional Cockpit Control Hydraulic Swim Platform Panoramic Sunroof with Amazing 360 Degree Views 3 Stateroom 2 Head Layout Loaded with Raymarine Hybrid Touch Electronics Upgraded LED Lighting Throughout JL Speakers with Clarion Stereo Summer Galley in Cockpit Contact Jordan Preusz | Jordan@DenisonYachtSales.com

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For a review that explains how the Velodyne Martinin 1.5 works: http://features.boats.com/boat-content/2013/03/the-velodyne-martini-1-5-active-suspension-on-a-boat/ For more videos from the Miami Boat Show, visit www.boats.com. The Velodyne Martini 1.5 was the wackiest, and most technically impressive, thing I saw at this year's Miami International Boat Show. In a nutshell, the Martini 1.5—so-named because it will keep your drink from sloshing—is a pontoon boat with active suspension. The system is the creation of Velodyne founder David Hall and a team of very enthusiastic engineers, some of whom were at Miami and gave me a demo ride on the boat. Hall and the Velodyne name may be familiar to audiophiles, as he got his start in 1983 with a patented, accelerometer-based High Gain Servo System to control sub-woofer cone movement. The company, which is based on the fringe of Silicon Valley near Morgan Hill, California, is still in the speaker business and has also developed the Velodyne LiDAR system used for 3D mapping. At Miami, one of the engineers explained that the Martini 1.5 is based on the same premise as their original speaker, "but instead of measuring and reacting to the movement of the speaker cone, we are reacting to the movement of the boat deck to cancel out the action of the waves."

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