Best MEMS driver in-ear monitor earphones

Top pick: Kiwi Ears Halcyon — a true tribrid with a MEMS driver alongside a dynamic driver and three balanced armatures, so you get the MEMS speed and airiness plus real bass weight. It's the most complete MEMS option I found and the one to start with.

• Binary EP321 MEMS — if you want the MEMS driver front and center: wired, 32 ohms, tuned for natural timbre and detail without sibilance. Best for acoustic, vocal and string-heavy listening.
• Kiwi Ears Cadenza — a cheap way into the Kiwi Ears house sound, but it's a beryllium dynamic driver, not MEMS; pick it only if budget matters more than the driver type.

Note: the other in-ears here (Soundbrenner, MEE, Ultimate Ears, KZ) are dynamic, planar or balanced-armature designs — good IEMs, but not MEMS.