XT-5 speakers pair the Raidho Ribbon Tweeter with six Ceramix drive units and a new Titanium/Ceramic sandwich membrane “We started by taking our existing three-layer aluminium/ceramic sandwich and on each side,” said the company, “depositing two layers of a carefully calculated combination of Titanium and Titanium Nitride particles, using a high-temperature sputter process, to create a composite, seven-layer membrane. The twin titanium coatings act as a dense constraining layers tha...