|ONKYO Integra M-955NII/260
Power amplifier which supplied various technologies
while compiling the circuitry technology accumulated by Integra into one book, and aimed at the modification of the play of an inside bass region.
dual channel scheme independent source is adopted, and while removing the cross
interferencee from the power source at the time of the Class B operation by
using a large-sized cut-core transformer for right-and-left both channel
independency, a large-sized power circuit, such as also using especially a
capacitor with large capacity, is constituted.
In order to reduce a
grounding impedance, electric resistance has equipped the bus-grounding line
which uses the copperplate of the 1.0mm thickness near about 0, and 5.5mm the
copper wire two equivalent to 50 core code 5 regular text.
Moreover, while using low ±2 power-source electrolytic capacitor of a
grounding impedance for a capacitor, in order to abolish the variation by an
impedance with Handa, the screw terminal type is adopted.
push pull OTL circuitry designed newly is adopted as an output circuit focusing
on the improvement in the linearity in a modification of a riser property, a
distorted reduction, especially Loule Bell.
In order to drive to an
up-and-down symmetry, the differential push pull type drive circuitry which has
a current mirror circuitry of a new-installation meter is operated by another
high voltage power supply.
The film capacitor of a unguided extended
foil structure is adopted as the coupling capacitor which affects play sound.
They are the powerful Class B drive and the compatible design of the
first class drive for a super-low-distortion play.
It is the design which
minded enough also at the linearity in mini power or the time of the Class B
In order to monitor an output, the peek monitor by light
emitting diode is built in.
The point clipping output and a point of -3dB can be monitored.
||Stereo power amplifier
|Output power (1kHz)
|At the time of a first class
|At the time of the Class B
|20Hz - a 20kHz output (8 ohm, T.H.D.0.03%)
||At the time of a first-class operation: 28W+28W
the time of the Class B operation: 130W+130W
|Dynamic power (8 ohm, 1kHz)
||At the time of a first-class operation: 56W
time of the Class B operation: 310W
|THD (T. H.D., 8 ohms, 1kHz)
||At the time of an Output power: 0.03% or less
the time of 10W output: 0.03% or less
At the time of 0.5W output: 0.03% or
|Cross modulation distortion
(at SMPTE, the time of an Output power 70Hz : 7kHz = 4:1 or 8ohms)
|0.05% or less
|Power Band Width (IHF-3dB, T.H.D.0.3%, 8ohm)
||10Hz - 100kHz
|S/N (an IHF A network, an input shunt, 8ohm)
||110dB or more
|Dumping factor (DC-20kHz, 8ohms)
|Input impedance (10Hz - 50kHz)
|Rated input voltage
||At the time of a first-class operation: 0.7V
At the time of the Class B operation: 1.5V
||Speaker: Two lines (System1&System2)
|The semiconductor used
||Transistor: 58 pieces
Diode: 60 pieces
light emitting diode: Four pieces
||Electrical Appliance and Material Control
Law specification: 210W
Maximum electric power consumption: 568W
||Width 440x height 158x depth of 370mm
||Wood case CW-6 (3,000yen)