Grado Reference3

Moving Iron Phono Cartridge - Low Output

Item #GR:REFERENCE3-LOW
Grado Item # Reference3

Grado Reference3

Moving Iron Phono Cartridge - Low Output

$1,500.00
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Overview

The Master3 and Reference3 models use a five piece OTL cantilever technology achieving an additional 5% tip mass reduction over the Platinum3 and Sonata3 models. The coils are wound with ultra-high purity long crystal (UHPLC) oxygen free copper wire. The Master3 model is mounted with Grado's specially designed nude elliptical diamond, and the Reference3 model uses Grado's true ellipsoid design diamond. These cartridges are individually calibrated.

Achieving fantastic accuracy and control, the Reference3 does everything the Master3 can do - but does it better thanks to specialized intricate processes while being crafted.


Top of the Timbre
While similar to its younger sibling in a few aspects, the Reference3 has a much longer build time since it undergoes extremely unique processes only a few of our cartridges go through. This longer, more intricate practice produces a more colorful and deeper sound.


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 undistorted 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.


Built from Jarrah
After the Reference3 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.

Details & Specs

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

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