Gear & technology
MM cartridge
Also called moving magnet cartridge, moving magnet
A moving magnet cartridge generates its signal with a tiny magnet on the end of the stylus cantilever that moves between fixed coils. It outputs a few millivolts, works with any standard phono stage and usually has a replaceable stylus.
The design is the default for most turntables, from an entry-level Audio-Technica AT-VM95 to high-end models. The higher output makes it forgiving of noisy phono stages, and a worn stylus is swapped by hand rather than sent for retipping.
Compared with an MC cartridge, the moving mass on the cantilever is higher, which the MC camp says limits detail. MM supporters point to the convenience and the cost; listeners disagree about how much difference it makes.