|262,500 yen(including tax , release time -- unknown)
The D/A converter which carries DAC and the preamplifier function corresponding
to 24 bits.
SM5865CM of NPC corresponding to 24 bits/192 kHz is newly
adopted as a D/A converter.
Moreover, in order to realize ultra high-speed
digital data transmission, the memory device for 0.3ns is used for the input
unit of a DAC circuit.
The single-ended pure Class-A preamplifier is
carried, and the drive of the power amplifier by DX71mkII is directly possible.
Furthermore, four potention meter of 100 steps is carried in volume control, and
high-quality sound and smooth volume control is realized by carrying out digital
control of the resistance.
Moreover, the digital phase inverter (phase
change) which makes connection with overseas amplifier easy is also carried.
The power-source part has the composition that the digital part and the analog part became independent completely, and right and left are also made to
separate about an analog part.
Furthermore, a 130,000-micro F mass capacitor
is carried, and also supply speed adopts the original establishment meter "time
constant" amplifier which is not influenced by the engine performance of a
transformer or a capacitor, and high-speed-izing of a power-source part and
reduction of the noise level are aimed at.
Independent loading of the this
"time constant" amplifier is carried out in each stage of the digital analog, and that capacity is super-low electron-spin resonance without frequency change, and has realized the theoretical value of 1,000,000 micro F or more.
addition to a coaxial and optical, the super link original with AES/EBU or CEC
is carried in the digital input part.
By a CEC super link, since audio data
and clock data are separated and transmitted, without going via encoding of a
SPDIF system, it is possible to stop sound quality degradation to the minimum.
Although the shake called ringing just before a peak and to immediately
after had arisen in the usual FIR digital filter with the energy generated at
the time of a peak pulse,In DX71mkII, the high speed digital filter is adopted,
ringing was not generated, and the distortion on sound quality is improved.
It has succeeded in balance-izing a signal on a digital stage, and 24 bits
of four DAC are carried in the parallel balance circuit where the detailed
design was performed.
In addition to the reduction by half of a distortion, this is increasing
||A coaxial (same axle), optical (light),
CEC super link (D-sub 9 pin)
||Balanced type (XLR): Two lines
(RCA): Two lines
||NPC SM5865CM, 24 bits
||Width 435x height 105x depth of 310mm
||CEC super link cable