The Master2 and Reference2 models use a five piece OTL cantilever technology achieving an additional 5% tip mass reduction over the Platinum2 and Sonata2 models. The coils are wound with ultra-high purity long crystal (UHPLC) oxygen free copper wire. The Master2 model is mounted with Grado's specially designed nude elliptical diamond, and the Reference2 model uses Grado's true ellipsoid design diamond. These cartridges are individually calibrated.
"The Grado Reference is a great cartridge. It is the cartridge I will take into the twilight of analogue. It could well be the last - and the best - cartridge you will ever buy."