Shure V15VxMR User Manual page 3

The V15VxMR's Micro-Ridge stylus tip and low
effective-mass
almost double previously achieved high frequency
trackability at 10 kHz - at an optimum stylus force of
only one gram!
B
eryllium MICROWALL/Be Stylus Cantilever for
Lowest Effective Mass Ever!
Beryllium has extremely low mass and high stiffness.
These properties result in superior performance,
however, only when the material is geometrically
optimized.
MICROWALL
lowest effective mass and highest ratio of stiffness to
mass of any stylus cantilever ever, resulting in
unprecedented high-frequency trackability.
Below is the Stiffness to Mass ratio for the three
different types of beryllium cantilevers shown in
Figure 1 (inside back cover).
a
SOLID ROD
10 mil dia.
Stiffness/Mass
Ratio: 1
The physical characteristics of beryllium allow a
longer length low-mass stylus structure. The resultant
longer cantilever achieves the proper vertical tracking
angle for a better match to the recorded signal and
lower distortion.
MASAR-Polished Micro-Ridge (MR) stylus tip
The MR Micro-Ridge stylus tip has a very small
tracing radius, as shown in Figure 2, that reduces
distortion and minimizes record surface indentation for
long record life.
The very low mass of the nude, gem-stone quality
diamond tip of the V15VxMR helps minimize the total
effective stylus mass.
The areas of the diamond actually in contact with the
record are
polishing technique for reducing surface noise and
record wear.
MICROWALL
The ultra-thin (0.0005-inch) beryllium
/Be tube, shown in Figure 1c, has the
b
2 mil WALL
12 mil dia.
Stiffness/Mass
Ratio: 2
MASAR-polished,
/Be stylus structure
0.5 mil MICROWALL
18 mil dia.
Stiffness/Mass
Ratio: 6.25
an
3
c
ultra-smooth