Turn your boat’s glass panels into a loudspeaker using this innovative technology from Italy’s Videoworks. You just need the space to attach a small sound driver in one corner of the pane, and at least 1m2 of glass, and the result is excellent, invisible sound. Technicians at Audioworks say quality and output is equivalent to an 8.5in speaker. To dispense altogether with ugly boxes of audio electronics, run the speaker from Videoworks’ new Slim Audio Master amplifier.