The McIntosh McAire is a standalone stereo system designed for Apple AirPlay. It also is a fine hardware complement for the McIntosh AP1 Music Player app, digitizing those iconic blue meters (although these sadly don't actually respond to the music). The app is free but the McAire is $3,000 -- real blue meters are expensive!
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.