Nearing the top of the Timbre Series, the Master3 achieves optimal sonic quality due to an intricate curing process and specialized materials reserved for Grado's best cartridges.

On Reserve.
Some practices Grado reserves for cartridges near the top of the line, and it starts here. To achieve their desired sound, Grado experimented with multiple longer curing processes that differ from the Opus3, Platinum3, and Sonata3 while using more modified materials. Each Master3 is individually calibrated after being built.

The Materials
To make the Timbre Series work as a whole, Grado created a way for Jarrah, diamonds, and a twin magnet system to integrate with their Flux-Bridge™. Unlike the cartridges before it, Grado modified their five piece OTL cantilever technology to achieve a 5% tip mass reduction over the Prestige Series and use ultra-high purity long crystal (UHPLC) oxygen free copper wire in the coils. The Master3 uses a specially Grado designed nude elliptical diamond.

Extreme Precision
Grado has combined newly developed coil winding techniques with decades-old disciplines. A new two-step shielding process brings not only exact unison between the four coils but an unobstructed path for a cleaner signal. The music is allowed to travel un-distorted through the coils, greatly reducing mechanical noise while improving tracking. There is an extreme clarity over the full frequency range, with absolutely no stridency or shrillness. Precisely hand tipped with a diamond, a great amount of care go into each cartridge they build.

Built from Jarrah
After the Platinum3 cartridge is crafted, it is then placed inside a Australian Jarrah housing. Jarrah is necessary for the majority of Timbre Series with its ability to produce surgically precise clarity without losing any depth. Through a variation of thermal aging processes, the housing gains the ability to better dampen and control the resonant frequencies.

Hand-Built in Brooklyn
Each Master3 is hand-built by Grado's team in Brooklyn, as it has been for decades. They are fine tuned for everything from entry-level turntables up to the highest-end stereo systems, the solid mass of the wood helps keep the Master3 steady and producing the Grado signature sound. Grado started building cartridges on a kitchen table in 1953, and every experience since then has led to the creation of the Master3.

Specifications:

• Body:  Australian Jarrah Wood
• Cantileaver:  Machined Boron / Diamond Tip
• Output:  High 4.0mV @5 CMV (45)  /  Low 1.0mV @5 CMV (45)
• Inductance:  High Output 55mH  /  Low Output 6mH
• Resistance:  High Output 660 ohms  /  Low Output 70 ohms
• Input Load:  10k-47k ohms
• Cartridge Weight:  10 grams
• Tracking Force:  1.6-1.9 grams
• Compliance:  20μm/mN
• Channel Separation:  Average 30db - 10-30k Hz
• Controlled Frequency Response:  10-60 KHz
• Non-Sensative to Capacitive Load
• Builds:  High Output, Low Output, Mono

Available in HI Output: 4mV or in LOW Output: 1.0mV