There is
a wealth of information in the grooves - and the cartridge. The
arm and the turntable dictate the foundation and the resolution
upon which the rest of the playback system is built upon.
I am
continuously amazed at the ability to open up (read, observe,
feel and "see"), the recorded ambience, stage dimensions,
timbre, decay, and the ability to decipher the recorded clues
that the microphones picked up and how they picked it up - all,
by designing and manufacturing those mechanical wonders,
turntables, arm and cartridge, that can do the tricks. Actually,
those aren't 'tricks' at all; they are sound-concepts,
executions, and way of manufacturing...
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Judith
Spotheim-Koreneeff
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SpJ La Luce Turntable
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La Luce
turntable is the smallest of the Spotheim SpJ La Luce series.
La Luce
turntable is a low energy storage, direct-coupled, non-suspended
design. The transparent acrylic platter's mass and inertia is
increased by the embedded stainless steel weights around the
platter periphery.
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A central, asymmetric acrylic block holds the bearing house.
The pick-up arm is directly connected to this acrylic
central block. An acrylic cylinder is bolted to the
underside of the central block and this forms a T-shaped
support.
La-Luce turntable rests on three contact points and is
levelled by adjustment knobs on each side of the T-shape
support. All major components are individually machined from
billets of transparent acrylic. |
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The ideal mechanical impedance match of the acrylic material
and record vinyl allows stylus-induced resonance to pass
smoothly into the mass of the platter and platform. Platter
revolving mass: 8-Kg.
A
soft belt drives the platter at 33.3-RPM or at the 45-RMP
platter speed. The belt is connected to the outboard direct
drive synchronous AC motor, which is set inside a massive
metal housing. |
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SpJ Alba Turntable
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The
newest edition to the SpJ turntable family is the humongous Alba
turntable:
The Alba
design has two platters:
The top
(the record platter equipped with the record spindle and the
clamp system) is made of two layers: the top layer is a 42-mm
thick acrylic disk bolted to a soft aluminum disk platter of the
same 330-mm outer diameter. That aluminum disk platter has three
stainless steel spikes that sits on top a seperate carrier,
underneath platter; Only the carrier platter makes contact with
the belt. The carrier platter's mass is encreased by thirty
stainless steel vertically placed cylinders.
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The Alba
turntable rests upon three stainless steel contact points and is
leveled by the two knobs on either side of the T-bar support.
A
symmetric ground-base aluminium plate 41-mm thick.
Stand-alone motor house: 8-Kg stainless steel.
Driven by
a semi-soft single belt and a Direct-coupled Synchronous AC
motor. (Separate switch on the motor house reduces the running
motor voltage).
One-piece
sintered-bronze bearing: 7-Kg.
Platter's
Outer Diameter: 330-mm.
Platter's Height: 185-mm.
Platter's Total Revolving mass: 30-Kg. (7.5-Kg of the peripheral
weight revolves below the centre of gravity).
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SpJ La Luce CS Centoventi turntable
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La Luce
top of the line, the C.S. Centoventi, is low energy storage,
non-suspended design, driven by a soft belt and a stand-alone
motor set inside a 9kg stainless steel cylinder-house.
La Luce C.S. Centoventi features a 120-mm thick platter with an
outer diameter of 330-mm. The transparent acrylic platter is
machined from one solid block.
Platter
mass and inertia is increased by embedded stainless steel
weights around the platter periphery. The ideal mechanical
impedance match of the acrylic material and record vinyl allows
stylus-induced resonance to pass smoothly into the mass of the
platter and platform.
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La Luce
C.S.Centoventi platter weighs 18 Kg and the platter's massive,
one-piece 3 Kg sintered-bronze bearing, is hand matched to the
chrome-hardened steel, spindle shaft. A central, asymmetric,
thick solid acrylic block holds the bearing house and the arm
ground plate.
An
acrylic cylinder is bolted to the underside of the central block
and this forms a broad, T-shaped support. The La Luce rests on
three contact points and levelling is accomplished through
adjustment polished stainless steel knobs on each side of the
support.
In
addition to the on-off switch, a separate optional switch allows
the motor to run on a reduced AC voltage.
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SpJ Lyla Pick-up Arm
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The SpJ
Lyla pick-up arm has been designed in the manner of a precision
instrument, and has been manufactured to extremely fine
tolerances out of materials chosen to insure neutral and
accurate playback of analogue records.
The SpJ
Lyla pick-up arm is made of Titanium; it is a uni-pivot " I "-
shape design that places the stylus tip in a straight line with
both the arm wand longitude and the arm's pivot. The SpJ Lyla
carries a minimal lateral mass.
The SpJ
Lyla Offset-Angle is appropriate for an effective length of
312-mm - according to the classical Bærwald tone arm geometry
calculation, which places the Null Radii at 66 and at120.9-mm
from the turntable's spindle center.
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VTA height setting is made possible even as the stylus tracks
the grooves.• Spindle to pivot gauge to set the arm's pivot
distance from the turntable spindle is supplied.
Gauge to
set the stylus effective length is also supplied.
Template
engraved with Bærwald two Null Radii, to check setting of the
cartridge offset angle is supplied with the SpJ Lyla. The
template can also be used to check setting of the cartridge
azimuth.
The SpJ
Lyla pick-up arm may be used with cartridges weighing from 3 to
more than16 grams, due to add on or interchangeable stainless
steel counterbalances.
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SpJ Ebony MC Cartridge
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Made by Benz, Switzerland, to SpJ specifications,
And based on the advanced Ruby MK 3
Cartridge
weight; 10.7-grams.
- Body: Vented machined Air-dried African Ebony wood.
- Stylus: Fritz-Gayer Nude-Line-Contact diamond mirror polished.
- Cantilever: Hardened solid Boron.
- Vertical Tracking: 20 - 22 degree.
- Cartridge top metal plate: Cross-Form, Aircraft aluminum.
- Mounting: 2 X M-2.5 threaded holes.
- Output: .38-mV. (Utilizing .25mV output coil) at 3.54 cm/s.
- Coil former: Square Hollow Ruby Plate.
- Frequency response: 10 - 50,000 Hz (+/- 1dB)
- Balance: better than 0.5dB.
- Minimal Separation figure: 1000Hz: 38-dB
- Compliance: 13um/mN
- Recommended Loading: 500-47,000-ohms
- Recommended Tracking force: 1.8 - 2.2-gram
- Recommended tonearm mass: Medium to High mass.
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Click here to read about my
interview with Jonathan Skull, Stereophile Magazine.
Click here for some additional Stereophile Quotes.
Click here to read a press release from the Vinyl
Anachronist.
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Sorry, no free gifts or samples for reviewers!
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