DC integrated amplifier which aimed at the
correspondence to a next-generation audio by carrying a Pure Non NF circuitry.
In order to drive a speaker to a dynamic more, the newly developed Pure
Non NF circuitry is carried.
In this circuitry, the electric current
required for a speaker drive could be supplied more to the smooth, the response
of the electric current improved, without an output stage receiving the
influence by NF (Negative Feedback), and the more faithful speaker drive is
By adopting DC amplifier stream composition, influence on the
tone quality by the capacitor of a signal path is not received, but a low-pass
time constant is reduced, and the wide-range play is enabled.
The power transformer which strengthened vibration proof and thermal resistance
with the high-density fill, and the electrolytic capacitor for audios excellent
in condensation / electric-discharge speed are adopted as a power-source
strap mounting scheme which hangs a power transformer upside down from a body
upper portion as an oscillating measure is adopted, and the propagation of the
oscillation is prevented by using the self-weight of a transformer.
part which aimed at non-magnetic-material-izing of each part and the improvement
in a vibration proof performance is adopted.
The presence control in the 4 modes is carried. In a loudness 1-2, it raises a high region and low-pass simultaneously. Moreover, in the base boost 1-2, it raises low-pass.
(20Hz - 20kHz, both channel simultaneous operation)
||0.07% or less (at the time of 8 ohm, 20Hz - 20kHz, and an effective output)
|Cross modulation wave distortion
||0.07% or less (at 8 ohm, the time of an effective output 60Hz:7kHz=4:1,
the SMPTE method)
|Input sensitivity/input impedance
|Phono MC: 300 microvolts/100 ohms
man month: 2.5mV / 47kohm
compact disk, Tuner, DVD-Audio/Line, micro
disk/Tape-1 or 2:150mV /, 4.7kohm
|Maximum permissible input
||Phono man month: 20Hz-20kHz}0.5dB
compact disk, Tuner, DVD-Audio/Line, micro disk/Tape1, 2
|SN ratio (A network)
|Phono MC: 70dB or more
Phono man month:
88dB or more
compact disk, Tuner, DVD-Audio/Line, micro disk/Tape1, 2:110dB
||The Bass maximum variation: }8dB (50Hz)
The Treble maximum variation: }8dB (10kHz)
||16Hz (-3dB), 6dB / oct
30W (at the time of a
||Width 430x height 136x depth of 365mm