Shure V15 Type IV SUPER TRACK IV,V15 Type IV SUPER TRACK IV User Manual
V15
l'ype
IV
Stereo Dyneticw
Phono Cartridges
the
IV
does more...
The creation ofthe
V15
me N is something of a tour de
force in innovative engineering. The challenge was to
design a cartridge that would transcend all existing
cartridges in musical transparency, technical excellence,
and uniformity. The unprecedented research and design
disciplines that were brought to bear on this challenge over
aperiod of severalyean have resulted
in
an altogether new
pickup system that exceeds previous
performance levels
by a
significant degree - not merely in one parameter, but
in totality. In fact, this pickup system has prevailed
simultaneously over several extremely
difficult music
re-creation problems which, until now, have defied
practical solutions. Most of all, this is an eminently musical
cartridge which is a delight to the critical ear, regardless of
programmaterial, or the rigorous demands of today's most
technically advanced recordings.
..An
elegant
solution
to many prevalent problems
The
V15
Type N is a Stabilized, Static-free, Super-Trackability cartridge-stylus
system. The next few pages will explain the following advantages of the
SUPER TRACK
NTY
system:
Demonstrably improved trackability
the record.
across the entire audible spectrum
-
h
effective dust and lint removal
especially in the critical mid- and
system.
high-frequency areas.
A
Hyperelliptical stylus tip
Dynamically stabilized tracking configuration dramatically reduces
overcomes record-warp caused
both harmonic and intermodulation
problems, such as fluctuating tracking
distortion.
force, varying tracking angle and wow.
Ultra-flat response - individually
Electrostatic neutralization of the
tested to meet all specifications.
record surface minimizes three
Reduced dynamic mechanical
separate problems: static discharge;
electrostatic attraction of the cartridge
to the record; and attraction of dust to
impedance
dlows superb
performance at ultra-light tracking
forces.
Contents:
..................................
Trackability
4-5
Warp
.........................
....
..........
..6
...................................................
Static
7
Dust
...................................................
8
Stylus Information
..........
9,
13, 15
Installation
...............................
10-12
Operation
.....................................
13
................
Care and Cleaning 13-14
Specifications and
Dimensions
.........................
14-15
Warranty
.........................................
16
READ
ON
...
The new frontiers
of
trackability
'Trackability - thr abilit>, of the stylus to stay in contact with both
groove
walls - remains the one ove~whelming measure of a car-
tridge's overall
performance. The chart at right shows a hitherto
unattainable excellence in
trackability, at super-light, record- and
stylus
tip-sa~ing forces.
However, consistent
tracking has always been challenged by such
additiunal ever-present factors as warp, static, lint and dust
-
especially when these factors combine with \vide dynamic range
"hot"
~cordings. The many new design features of the
Vl5
Type
N
permit the stylus to achieve and mainta~n unprecedented trackability with a cbnsistency never before possible.
In the following chart, the shaded
areaat bottom left =presents thr
en\~elooe
of actual Ivalv slenals found on records The shadrd area
.
L,
at right reprrsrnts recommended theoretical limits of rrcord
rutting velocities 'The scattered points are the "hottest' rrecordrd
velocities actuaUy measured on d~fficult-to-track records
Al-
though a cartridge nith rnodcratc. trackabllity \\ill be able to track
all the recorded velocities encornpassed
\\ithin the theoretical
rutting stylus limits, substantially higher trackability is needed to
track
~xrordrd vrloritirs actually found on tuday's
discs
The
V15
I>ve
IV
tracks more of the 'I~ottest" points at a lo\\, stylus f~rcp than
any othrr rxisting rart~idgp Thr run,r shonm is for 1 gram tracking
force.
By increasing thr tracking force to
1-1/4
grarns, evcri morr of
4
these polnts - xirtually all r~rords pruduced thus far - will be
tracked
Also, note the revolutionar) subaudible warp signal range trackahility charactelistics of the Super Track
IVTM,
discussrd in detail
on Page
Six.
SYSTEM
TRACKABILITY'
THEORETICAL RECORDED VELOCTES
'Cartndgr-ton? arrn system trarkahllity as rnounted In
SME
3009
tune
am
at 1 gram tracking furce
Coping
with
"hot"
recorded
signals
...
The "hot" signal problem
The stylus cannot track the hea\ily modulated signals found on
Inany of the newest records
Its symptoms
The stylus mistracks and produces
dlstort~on and buzzlng sounds. While mistracking can occur at any
frequency. extreme mistracking occurs most at high frequencies.
Extreme
mistracking can ineparably damage the record groove.
The Super
Track
IVTM
total design solution
The
V15
Type
IV
has a
new stylus assembly
designed fnr dramati-
cally increased trackahility as
thr result of two significant im-
provements
A.
The effective stylus mass of the conventional moving system has
hrrn
lotvered hv utilizine
a telescooed shank structure
(No
1
in
figure at lefty and a
&w iightwkight high-energy
magnet
[No.
21
The reduced effective mass of the new structure helps
improve trackability in the critical mid-and
high-hquencies.
B.
Incorporating
a newly designed two-function bearing sys-
tem
(No.
3)
has bypassed prex<ously necessary design compromises. The new bearing system is independently optimized
for low frequencies and for high frequencies so that trackability
is enhanced across the entire audio spectrum.
The
V15
Type N has a
Hyperelliptical nude diamond tip
[No
4)
that results in an elongated tip-groove contact area The ne\v tip
provides as much as a
25%
reduction in distortion over a conven-
tional biradial (elliptical) stylus"
"See graph on Page Nine
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