|89,800yen(around the 1987 time)
A digital multi-interface circuit is carried in a core, and it is an Integrated
Amplifier corresponding to a digital output.
A 400VA rank and a 6.2kg
large-sized EI transformer are carried in the power transformer.
commutator of surge current 200A/200V is adopted as rectification, and in order
to acquire mighty output current, a total of 32,800 micro F of electrolytic
condensers is carried.
With two kinds of electrolytic condensers from which
a tongue delta differs by 2-2 system which is the feature of a pure dynamic
power source, the electrolytic capacitor intercepted the power-source noise and
has acquired the energy electric supply capability for purity to be high.
Super unreturned amplifier original with DENON is adopted as a power
As for this amplifier, the flow of an audio signal has simple circuit composition
of only one way. Moreover, the high-speed operational amplifier detected
the distorted ingredient by active devices, such as a transistor, and it
has removed only the distorted ingredient.
Moreover, static distortion (higher-harmonic-wave distortion,
intermodulation distortion) is negated theoretically, and it has become a
circuit where the stability which does not generate dynamic distortion
(transient distortion) is high.
The final stage is using the
power transistor of fT20 MHz-Pc 150W by single push, and has acquired the linear
magnification characteristic from the minimum volume time till the amount of
The voltage magnification stage adopted three steps of differential amplification,
the first rank adopted low noise FET very much, noise[ low ]-izing and
direct-current composition-ization were achieved, and good matching with
an electric power magnification stage is secured by the final stage of
a push pull circuit.
Moreover, the }350v[/micro ] sec high slew rate is
gained between CD input ->SP terminals by adoption of the new current mirror
circuit of the fT20MHz high-speed transistor use excellent in the high region
In order to correspond to a digital output, the
digital multi-interface is carried.
The digital multi-interface part
consists of an "interface circuit" and a "D/A converter circuit."
An interface circuit carries out discernment correspondence of the sampling
frequency automatically, and also carries the "straight line phase
Moreover, the right-and-left channel independent "W super linear converter"
system is used for a D/A converter circuit. In order that this may use 2 sets of
D/A converters, it does not have a conversion error at the time of the Dainyuu
power, either, a channel separation is excellent, and it does not have a
right-and-left channel time lag, either.
The interface circuit and the
D/A converter circuit were constituted in the separate wiring board, the
meantime was shielded, and interference of the digital signal which becomes
noise for an analog signal is prevented by preparing the exclusive power source
made to become independent of a secondary transformer side in an interface
Furthermore, since the whole is covered with the shielding case
which serves as vibrationproofing of a chassis or a wiring board, it is stopping
that a digital noise leaks to other portions.
The Source-Direct switch
is carried, when it is used, a control part is canceled completely, and all the
input sauce is directly linked with power amplifier.
The equalizer amplifier which constituted the first rank from uncanny low
noise FET differential amplification is carried.
Three tape inputs are equipped and recording
is also possible apart from a speaker play by a Rec Out selector.
The analog input system has equipped the processor loop printer which can utilize
sound creative apparatus, such as a surround processor and a graphic equalizer.
Top covering is used as an eight-point stop, and it is made the main
chassis with the direct stop.
By fully considering a suitable setup of each
dimension, each screw stop position, and arrangement of an insulator, a bottom
chassis improves the reduction effect of vibration and is distributing the mode
of vibration while making it into a transformer part and the two-sheet structure
of dividing others.
The Subsonic Filter is carried only in Phono.
The reset type high-speed protection circuit of an establishment meter
||Stereo Integrated Amplifier
|<Power amplifier part>
|Output power (20Hz - 20kHz)
||Processor loop input: 150mV/47kohm
||0.004% (20Hz - 20kHz, 55W, 8ohm)
|Cross modulation distortion
||0.003% (an equivalent for 110W, 8ohms)
||Below measurement full limits
||5Hz - 100kHz (55W, 0.5%, 8ohms)
||4Hz - 150kHz, and +0 -3dB (1W, 8ohm)
|Output load impedance
||0.1ohm or less
||Speaker: AorB:6-16ohm, A+B:12-16ohm
Headset-jack maximum except take-off: 430mW (8ohms), 8-400-ohm conformity
|<A digital interface / the DAC
|A digital input level / impedance
||0.5 Vp-p/75ohm same axle
|Frequency response (0dB)
|Signal to noise ratio (dB for zero, 1kHz)
|Dynamic range (1kHz)
|THD (0dB, 1kHz)
|Channel separation (0dB, 1kHz)
||Phono MM: 2.5mV/47kohm
CD, AUX, Tuner, Tape1, 2, 3(DAT):150mV/47kohm
|The maximum except take-off/Output power
(processor loop included about an output.)
|THD (processor loop included about an output)
||0.002% (1kHz, 8V)
|Equalizer (RIAA) deflection
||20Hz-100kHz}0.3dB (MC IN - processor loop
|Signal to noise ratio
(an input short circuit, the auditory sensation weighting A)
Phono MC: 69dB (at the
time of a 0.25mV input)
CD, AUX, Tuner, Tape1, 2, 3 (DAT):108dB
|Tone control characteristic
||Bass: }8dB (100Hz)
Treble: }8dB (10kHz)
|The Subsonic Filter for Phono
||16Hz, -12 dB/oct
|Loudness control characteristic
||Low-pass: +4dB (100Hz)
High region: +4dB
(Electrical Appliance and Material Control Law)
(it is an included about a foot, a knob, a terminal, etc.)
|Width 434x height 172x depth of 396mm