||* Build-to-order article
450,000 yen(December, 1992 release)
Control amplifier which adopted the battery drive
Newly developed battery drive-by-class AA and advanced
system are adopted.
By this scheme, by performing the drive by a battery,
the signal circuit was completely separated from the AC power source, and the
noise loop between the equipments through a power source, the switching noise of
a power circuit, etc. are canceled.
The mass small seal lead accumulator
currently used for the power source for a backup of a mainframe computer main
arithmetic unit is used for a battery with one package, and it is possible in
the powering of about 4 hours at a full condensation. Moreover, if the remaining
capacity of a battery decreases, it will be detected, and it changes to AC mode
rectified automatically, and a condensation of a battery is started
simultaneously. If a condensation is completed, it will change to a battery
The newly developed resistor rotation volume is adopted as
The structure of being the way of thinking contrary to the
conventional volume, fixing a brush and rotating a resistor is used for this
volume. Thereby, the heterogeneous alloy-junction part leading to a tone-quality
failure is reduced by half. Moreover, special combination of the carbon which
fine-particle-ized the tone quality to the resistor influenced greatly is
carried out, and distortion is sharply improved because a free electron flows by
smooth transmit in carbon particles.
Furthermore, in order to reduce the extraneous vibration which gets across
to a brush, it puts into the gilding case of the large zinc die-casting
shaving appearance of specific gravity, and the thorough improvement in
a tone quality is aimed at.
THCB (Technics Hybrid
Construction Base) of multilayer structure is adopted as a chassis structure.
With this structure, the periodic-damping property excellent in facing
across a hard rubber base with a copper plating griddle bottom chassis and the
chassis of a griddle, and also piling up a copper plating griddle top chassis on
it is realized.
Furthermore, the top plate and bulk molding compound of
2.8mm thickness which considered the electromagnetic radiation were used, and
the oscillation from outside is prevented with the phi60mm large-sized insulator
which stuck wool felt, and the sub- wood of real wood specular surface finish.
In order to cancel the leakage magnetic flux generated by the
transformer of the conventional square-shaped cross-section core, R core
transformer of a circular section structure is adopted. By this transformer,
since the coil is closely wound around the circular core, uniform magnetic flux
is formed, and leakage flux and a loss can be reduced.
One balanced type
is carried in the input/output terminal, respectively.
This termination has
adopted as DL type permalloy core the transformer scheme of the balance volume
which stopped the degree of unbalance, and a severe shielding is given and it is
performing the stable transmit so that it may not be influenced by an external
The newly developed MASTER series high-quality sound
large-sized aluminum electrolytic capacitor is adopted as a capacitor.
this capacitor, the oxidization aluminum formed on the surface of aluminum foil
was made into the isolation layer, and the electric charge is taken out not by
electronic missions but by ion missions of the electrolytic solution.
Furthermore, the mechanical property is also improved by using newly developed
special vibration suppression aluminum also for a case.
volume with an ON/OFF switchpoint is carried.
The AC/DC operation
circuit changing switch is carried.
The battery voltmeter with an
AC/DC/Charge window is carried.
The golden cladding contact relay of
nitrogen gas ~ is adopted as a relay.
The very-thick PC-OCC power cord
with a polar window is adopted.
|THCB construction drawing
- Top chassis (copper plating)
- Rubber base
- Bottom chassis (copper plating)
- Foot (bulk-mode compound)
|THD (20Hz - 20kHz)
||Phono man month (Rec out, EIAJ): 0.001%
Line1/2, compact disk, tape1/2:0.001%
Line1/2, compact disk, tape of 1/2:97dB (EIAJ)
||Line1/2, compact disk, and
tape1/2:20Hz-20kHz+0 -0.1 dB
0.5Hz - 125kHz (+0dB-3dB)
Phono RIAA deflection: 20Hz-20kHz}0.2dB
||Pre out: 1V (20Hz - 20kHz, 0.001%)
|Maximum permissible input
||Width 483x height 134x depth of 375mm
||17.5kg (battery power-source included)
||Interchangeable battery driving power supply
2212X2 AU (2x12V, 2.2Ah/20HR) of LC-R
(Replacement-parts treatment, build to order, 19,800yen)