The Integrated Amplifier which adopted the
Distributed information-processing Network Architecture harmony (E class drive).
The Distributed information-processing Network Architecture harmony (E
class drive) scheme was adopted as the power amplifier part, and efficient high
power-ization is realized.
Moreover, a current mirror circuitry is adopted
as a Class-A drive circuitry, and the push pull drive of the power stage is
performed in it.
The high voltage of ±67V and 4 power-source schemes of
±31.5V were adopted as the power source, the high-speed power-source change was
performed to the moment level of a music special NetWare program, the
improvement in the dynamic margin to the dynamic range of a music special
NetWare program was measured, and high promotion of efficiency is attained.
Moreover, high-speed switching elements, such as high resisting pressure and
a high-speed switching diode developed especially for the Distributed
information-processing Network Architecture harmony scheme, and a high-speed
switching diode for large currents, are used.
hardwired-connection stream composition which uses a PNP transistor for a first
rank differential is adopted as the Puri part equalizer stage.
control part was excellent in the gain, and combined IC HA-1456 with high
stability, and NF form circuitry, and has obtained the low distortion.
Moreover, if the tone-defeat switchpoint is also carried, the tone
switchpoint for adjusting a tone quality is switched and it is made a defeet,
regardless of the location of a tone control, the flat frequency characteristic
will be acquired in an instant.
32 contact Attenuator type is adopted as
volume control, and the exact level control is made possible.
three-step change gain selector is carried, according to the efficiency of a
loudspeaker, 0dB -15dB-30dB and Attenuator type volume control are possible.
The Subsonic Filter, the high filter, and the loudness control are
The electronic formula protection network is built in.
The wood case of the photograph was sold as an option option.
|<Power amplifier part>
||2 steps of differentials whole page hardwired-connection 4 power-source
efficiency pure complimentary OCL
(Distributed information-processing Network Architecture harmony scheme)
||60W+60W (8 ohms, 20Hz - 20kHz, both ch(es)
85W+85W (8 ohms, 1kHz, both ch(es) drive)
110W/110W (ohms [ 8
],kHz [ 1 ], one-side-channel drive)
|Dynamic power (IHF)
||0.3% (at the time of an effective output
|Cross modulation distortion (70Hz:7kHz=4:1)
||0.05% (at the time of 1 / 2 effective
|Output bandwidth (IHF)
||10Hz - 50kHz
||A, B:4ohms - 16ohms
Headphone jack: 4ohms - 16ohms
||30 (1kHz, 8ohms) or more
||Equalizer amplifier: Differential three-step
hardwired connection per step
Control amplifier: NF form
Tape PB1, 2:100mV/50kohm
|Phono maximum permissible input
||Phono1, 2:230mV (RMS, 1kHz)
|An Output voltage/impedance
||Tape rec(pin): 100mV/1kohm
||Phono(RIAA deflection): 30Hz-15kHz±0.5dB
||Bass: ±10dB (100Hz)
||Low: 25Hz, 12dB / oct
High: 8kHz, 6dB /
|Loudness control (Volume-30dB)
||+ 8dB (100Hz), +4.5dB (10kHz)
|S/N (IHF, A network)
Tuner, Aux, Tape PB: 90dB
||0, -15, -30dB
|The semiconductor used
||Transistor: 44 pieces
Diode: 43 pieces
IC: One piece
||Power-switch interlock: One line
Power-switch un-interlocking.: Two lines
(Electrical Appliance and Material Control Law)
||Main unit: Width 435x height 144x depth of
At the time of a wood case using: Width 467x height 179x depth of
||Wood case LA-200 (6,500yen)