|290,000 yen(one set, the July, 1975 release)
Monophonic power amplifier which allowed no compromise but was completed over
long time aiming at improvement in much more quality of playback music.
considering it as monophonic power amplifier, while suppressing the mutual
intervention between right-and-left channels, weight and size are limited to the
range which can be treated alone.
Based on the active device which was excellent in the high frequency characteristic,
circuit composition constitutes all the magnification stages from a symmetrical
type push pull, and has realized the outstanding standup characteristic,
linearity, and stability by giving a little NFB.
thereby -- TIM -- also setting at the time of full power,
while preventing distorted generating -- low -- the distorted output has been
Moreover, in order to realize sound quality with few colorations,
the capacitor in a NFB loop is removed and it has direct-current amplifier
Energy as big as 152J is gained by impressing the high
voltage to a large-sized transformer and the filter capacitor of 22,000 micro
Fx2 at a power-source part (P-300 type is 120J).
Thereby, the low-pass
output characteristic is improved sharply.
The logarithm compression
type which can carry out the continuation Direct reading of 300W from 3mW is
adopted as a power output meter.
This meter can change both peak directions
and volume directions with a switch.
The Subsonic Filter is carried in
order to cut an unnecessary super-low-pass noise.
As volume control, adjustment of a 1dB step is possible to -20dB, and less than it carries 25
contact rotary switch of -23dB, -26dB, -30dB, and -infinity.
consideration of a studio monitor or the use as an object for PA of a hole, it
is considered as 19 type standard rack-mounted form, and the canon input is also
For the reason when setting to the place where the heat
dissipation effect is very bad, or carrying out continuous use by the Oide power
for a long period of time, the optional fan for airs cooling with blower can
||Monophonic power amplifier
(20Hz - 20kHz, 0.03% or
less of distortion)
|THD (20Hz - 20kHz)
||0.03% or less (at the time of an Output
0.01% or less (at the time of a -3dB output)
0.05% or less (at
the time of a 50mW output)
||0.01% or less (at the time of an Output
|Frequency response (8-ohm load)
||20Hz-20kHz+0 -0.2dB (at the time of an
2Hz-150kHz+0 -3.0dB (at the time of 1W output)
|Dumping factor (8-ohm load)
|S/N ratio (input short-circuit, IHF-A)
||115dB (at the time of an Output power)
||17Hz, 18 dB/oct
|Power output meter
||Logarithm compression type
- It is a
continuation Direct reading to 50dB (3mW) - +3dB (600W).
A peak level, with
a volume level changeover switch
|The semiconductor used
||Transistor: 47 pieces
IC: Three pieces
Diode: 51 pieces
|Power supply voltage
||At the time of no inputting: 65W
time of a 4ohm load Output power: 800W
At the time of an 8ohm load Output
||Width 482x height 170x depth of 345mm
||A set of accessories (with a fan) O-81 (8,000yen)
||Standard rack (19 inches) attachment is
Rack-mounted pitch: 100mm (4 inches)
Rack bore (horizontal):
More than 430mm (16 15/16 inches)