... Similar to Formula One racing, America's Cup racing and the aerospace industry, CAT's custom proprietary loudspeaker drivers (sub woofers - up to 22", midranges and tweeters), are constructed from top grade aluminum and titanium (to significantly increase strength, heat dissipation, accuracy, and power handling, while greatly reducing weight). Neodymium magnets contribute to the most powerful driver motors in the audio industry. To please top recording/mix/playback studio engineers, reduce unwanted loudspeaker enclosure/cabinet vibrations, and substantially increase performance, durability, and reliability, CAT uses HDF (stronger and denser than MDF), MBX 105 (similar to Corian and Avonite), Exotic Hardwoods, Marble, Granite, Concrete, Aluminum, Stainless Steel, and Titanium. For marine and outdoor applications, MBX105, Aluminum, 304 Stainless Steel, 316 Stainless Steel, 316L Stainless Steel, 2205 Stainless Steel, and Titanium are popular choices. Due to weight, large scale aircrafts prefer custom Aluminum and Titanium CAT loudspeaker enclosures/cabinets. Architects and designers enjoy CAT's unrivalled ability to manufacture custom loudspeakers and grilles, in any size or shape, from almost any material they choose. CAT offers thousands of colors, finishes, textures, fabrics, and even top grade leathers. "Seen" or "Unseen", CAT loudspeakers can "Disappear" or "Enhance"the world's elite decors!