The record player system which employed the merit of
the unit design efficiently as it was like the high-end model in order to pursue a tone quality.
The shell integral-type carbon graphite straight arm is
adopted as a tone arm.
In the vibration analysis which uses a computer, form
with few vibrations and a balance were defined theoretically, and also the tone arm which enables a more faithful transmit by the repetition of a measurement
and an audition is realized.
In order to suppress the low-pass vibration generated by the curvature
and decentration of a record, the silicon oil braking scheme (on-off is
possible) is adopted. This is pushing the dumping knob of an arm axis upper
portion, and its silicon braking fin poured into the oil cup is depressed,
and it has a structure which applies viscous braking to an arm. Moreover,
braking for which it was horizontally and perpendicularly suitable, respectively
serves as a design applied simultaneously by cutting the leading end of
a braking fin (the shape of a ring) into 45 degrees. While this suppresses
a harmful low-pass vibration, cross modulation distortion is reduced.
little variation per hour and viscous transition by a temperature, and they have adopted as it the silicon oil which is excellent as braking oil. Furthermore, by
storing this silicon oil in the oil cup built with high precision, oil oozes, し
is prevented and the robustness is improved.
The heavy weight class arm
base made from die-casting which gave the stabilizer effect is adopted as the arm base.
The coreless motor of SH and a rotor scheme is carried in the actuator.
Conventionally, it has succeeded in the sharp reduction of a wow
and flutter according to the structure which moved the supporting point
(bearing) of the rotor which suited the motor bottom to immediately under the
turntable, and the coreless structure which an cogging does not generate
Starting torque has realized stability which does not cause a
load variation to the 200g load intensity equivalent to 2.0g of stylus-forces
tone arm 100 duty by combining the turntable which is 1.3 kg-cm and also has an
inertial mass of 330 kg-cm2 (turntable sheet included).
three hall devices with a high robustness which Pioneer developed are used for
the magnetic pole change (switching) organization of a motor. Furthermore, the
detailed noise is banished by searching for the manipulation precision of micra
order until it results in the part of a detail.
The silence lift up
organization in which the quiet and exact operation was realized is adopted.
The moving coil scheme adapting the principle of operation of the speaker is
adopted as the elevation organization in which an arm is made to go up and down
first, and a uncontacted operation is carried out to it on DC voltage.
Furthermore, the hall device attached to the interior of an arm axis and the
scheme which performs a uncontacted detection with the magnet countered and
attached to this are adopted as a termination location detection of a record
sound track, and the operation stabilized without spoiling the performance of an
arm is realized to it.
A silence lift up organization is interlocked with
and the pure electronic quick stop organization in which a turntable is stopped
in an instant is carried.
The high-density cabinet which controls
effectively the deflection of the cabinet by anti-energy action of the angular
moment of the torque[ a high inertia and / high ]-ized turntable is adopted as a
Moreover, it has a structure strong also against the oscillation
from the outside by adopting the large-sized insulator of an original low
centroid structure as an insulator.
It is possible to adjust oil braking
with the level to 0-5 like high-end model PL-70LII and PL-50LII by using an
optional dumping coordination adapter.
S character type switching arm
pipe (with a large-sized wait) in which a switching of a head shell can be
performed easily is attached.
Moreover, the option also of the shell
integral-type straight arm pipe of carbon graphite is carried out.
||Cartridgeless player system
|<Phone motor part>
||Coreless Quartz PLL DC servo hall motor
||SH and a rotor scheme
|Turntable inertial mass
||330kg-cm2 (turntable sheet
||33 1 / 3 or 45rpm
|Rotational frequency change
||The electronic formula by a short stroke
||0.011% or less (WRMS/FG Direct-reading
0.023% or less (WRMS/Japanese Industrial Standard)
||82dB or more (DIN-B)
63dB or more
(Japanese Industrial Standard)
||0% (less than 200g of stylus forces)
||Less than 1/3 rotation
|Velocity detection scheme
||Perimeter integrator type FG
|Rotational frequency deflection
||0.002% or less
||Time drift : 0.00008%/h
drift : 0.00003%/degree C
||Pure electronic formula
|<Tone arm part>
||Oil braking scheme static balance twin pipe
exchange system pipe arm
||+ 2.7 degrees-1.3 degrees
||1g of wait 1 rotations
|Conformity cartridge self-weight
||Straight: 3g - 11g
S character type: 6g
- 32g (shell lump)
|Height adjustable range
||Carbon fiber composite material
|An attached organization
||Quartz locking-in Decatur
Silence lift up (electronic formula)
|The semiconductor used etc.
||Quartz crystal: One
||Width 490x height 180x depth of 401mm
||Dumping coordination adapter JP-506 (8,500yen)
Shell integral-type straight arm JP-515 (7,000yen)