Audio Pixels are going down a somewhat different route (MEMs to produce a speaker-on-chip) From the latest shareholders report: "devices were measured and dem

Audio Pixels are going down a somewhat different route (MEMs to produce a speaker-on-chip) From the latest shareholders report: "devices were measured and demonstrated to reproduce a near flat frequency response from 100Hz through 50KHz This pioneering achievement for the first time makes it possible for a single device to reproduce crystal clear sound throughout the audible spectrum ‐ without imposing the tradeoffs required by conventional speaker technologies to achieve quality sound through the utilization of separate drivers to reproduce the low, mid, and high frequencies" That said, they've been working on this idea for some time, no indication of when if ever a viable mass product will land