A French inventor wants to squeeze the technology of his $15,000 audiophile amplifier into your mobile phone
March 1, 2017 at 11:11 am

The market for amplifiers that cost thousands of dollars is vanishingly small. But in recent months, makers of cars, TVs, smartphones and headphones have grown increasingly eager to ally with the boutique firms that produce them. By placing audiophile-grade technology in ubiquitous products, the idea is to improve sound quality while adding a frisson of luxury.…