Grado Cartridges
Platinum3
Where Timbre meets Prestige.
The Platinum3 bridges Grado's Timbre and Prestige series — a modified four-piece OTL cantilever with nude elliptical diamond and ultra-high-purity long-crystal OFC copper coils, housed in a thermally treated Australian jarrah wood body. The Flux-Bridger generator uses reconfigured coils achieving a 12% lower effective moving mass than the Prestige series, delivering controlled frequency response from 10 Hz to 60 kHz with 30 dB channel separation. Available in high-output (4.0 mV) and low-output (1.0 mV) versions, as well as mono.
At a Glance
●4-piece OTL / nude elliptical
●12% lower moving mass
●UHPLC OFC copper coils
●10 Hz – 60 kHz response
●30 dB channel separation
●4.0 mV (high) / 1.0 mV (low)
●1.6–1.9 g tracking force
●Handmade in Brooklyn, NY
Key Features
4-Piece OTL Cantilever
Modified four-piece Optimized Transmission Line with nude elliptical diamond — 12% lower effective moving mass than the Prestige series.
UHPLC OFC Copper Coils
Ultra-high-purity long-crystal oxygen-free copper wire — the same grade used in the Sonata3 and Master3, with two-step shielding for signal purity.
Thermally Treated Jarrah Housing
Australian jarrah wood treated with thermal processes for enhanced dampening and stable acoustic properties across temperature and humidity ranges.
High & Low Output Available
4.0 mV high-output for standard MM phono stages or 1.0 mV low-output for MC-capable stages — choose to match your system.
Technologies Inside
Moving Iron Generator
A design no other manufacturer matches.
While most cartridges use moving magnets or moving coils, Grado's moving iron design moves a tiny iron element through a fixed magnetic and coil assembly. This produces a generator with very low moving mass — for fast transient response — combined with a high output voltage that drives any phono stage with ease. The result is a warm, detailed, and dynamically alive presentation.
Gallery
A closer look at the Platinum3.
More in Grado Cartridges
Experience the Platinum3
Visit our showroom for a personal demonstration. Hear the difference for yourself.
For complete specifications and technical details, visit the official Grado website.