Sumiko Smile Casting Jun 2026

A major fear with MC cartridges is that they can be too bright, causing "listening fatigue" (ear tiredness) after 20 minutes. The S.7 is famous for having smooth, extended high frequencies that offer detail without harshness. This contributes to the "Smile" factor—you can listen for hours comfortably.

The name is both literal and figurative. The mold used in this process resembles a crescent or a "smiling" shape when viewed from the side. More figuratively, Sumiko engineers joke that the broad, even frequency response and warm, forgiving midrange produced by these cartridges leave listeners "smiling" every time the needle hits the groove. sumiko smile casting