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| CEC DX71 |
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| 250,000 yen(1998 release) |
The DA converter which Mr. Carlos Candeias designed.
The digital input
carries AEX/EBU (XLR), COAX (RCA), TOS, and a CEC super link. An input is
connectable four-line simultaneous and remote control can also change it.
DX71 carries four 24 bit DAC of the defined current bias type which zero
crossing distortion does not generate theoretically, and the DAC unit consists
of high degree-of-location modules. Moreover, IV converter has adopted
the special circuit which made non-NFB possible, and has composition in
which a clock signal does not cover load over IV converter. Furthermore,
each stage has realized pure Class-A operation by the single-ended type
of full balance composition.
The super link which CEC newly developed is carried, and a
SPDIF system is separated and transmitted for an audio data stream or clock
data, without going via encoding,It has succeeded in generating a master clock
on the best point nearest to DAC, carrying the digital data synchronization
circuit which built in the ultra high-speed memory device, and essentially
reducing a Jitter to a zero level.
A signal is balance-ized with high precision on a digital stage, a distortion
is reduced by half by the thorough parallel balance circuitry which carries
24 bits of four DAC, and signal-processing speed is increased.
Moreover, the single-ended pure Class-A preamplifier is
carried, and the drive of power amplifier is directly possible. Four high
precision potention meter of 100 steps was carried in volume, and smooth volume
control is realized by carrying out digital control of the resistance.
Furthermore, the digital phase inverter
(phase change) is built in and connection with overseas amplifier is also easy.
Natural sound quality has been obtained without having adopted the high
linearity flat filter without ringing in addition to the usual FIR digital
filter, and also disturbing a pulsive ripple in a time-domain.
In order to
obtain a high-definition and dynamic play, the analog gauss filter of Miyoshi is
adopted.
This filter consists of only amplifier of one stage, and the filter
characteristic is excellent in vibration suppression nature, and does not
generate filter ringing.
A digital part and an analog part separate a
power-source part completely, and also the analog part is also making right and
left separate.
Furthermore, high-speed-izing of a power-source part and
reduction of the noise level are aimed at by adopting the original establishment
meter time constant amplifier [ have ] which carries a 130,000-micro F mass
capacitor, and supply speed influences for the engine performance of a
transformer or a capacitor.
Moreover, independent loading of the time
constant amplifier is carried out in each stage of digital one and an analog, and the capacity is super-low electron-spin resonance without frequency change, and has realized the theoretical value of 1,000,000 micro F or more.
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| Form |
D/A converter |
| Digital input |
A coaxial (same axle), optical (light),
AES/EBU (XLR)
CEC super link (D-sub 9 pin) |
| Audio output |
Balanced type (XLR): Two lines
Imbalanced type
(RCA): Two lines (a fixed output and variable output) |
| DAC |
24 bits, 32kHz - 100kHz correspondence
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| Dimensions |
Width 435x height 105x depth of 310mm |
| Weight |
10kg |
| Attachment |
CEC super link cable
Remote control
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