Onyx Platinum Cartridge
Internally, only the most tightly matched silver sheathed copper coils and cores are used. Rare platinum magnets allow the stone body cartridges to fully create the ethereal sound on which Koetsu has earned its reputation.
"... the Koetsu endured in delivering boatloads of color and texture, yet at the same time I've never heard a cartridge with greater, clearer pitch certainty on even the lowest bass notes ... All in all, the Koetsu Onyx Platinum communicated color, texture, touch, and musical nuance to an extent and in a combination that I'd never before heard ..."
See the review from TONE here
Art Dudley (R.I.P.)
Stereophile / December 2018 / Koetsu Onyx Platinum
Diamond Cantilever Upgrade from boron to diamond cantilever available.