|37,500yen(May, 1968 release)
The Integrated Amplifier which repeated not only a
sound circuit design but the audition testing, and was investigated and
Whole page silicon transistors, such as a low-noise silicon
transistor sorted out, are adopted as a power transistor especially in the
equalizer circuitry including using the epitaxial silicon transistor.
The SEPP-ITL-OTL scheme of the complimentary darlington circuit which
uses an epitaxial type silicon transistor for a power transistor is adopted.
The power transformer which demonstrated the transformer technology of
the SANSUI to the transformer at full, and was specially designed for transistor
amplifier is adopted.
The dumping factor carries the switchpoint changed
to two steps, High (45) and Low (12), so that the property of any speaker
systems may be suited.
NF type tone control by a low noise silicon
transistor is used for a middle amplifier part.
Moreover, loud sound, the
bass, and also the right-and-left channel carry the tone circuitry which can be adjusted independently.
The frequency characteristic, distortion, and S/N are improved with constituting
all the amplifying circuits from NF amplifier.
The pure electronic formula PSC (protection) circuitry original with an
SANSUI is adopted so that a power transistor may not be damaged, even if
it makes an output-terminal short-circuit accidentally.
Furthermore, it is a double security unit
which certainly secures a safeness combining an immediate judgment fuse in a
It is designed so that a preamplifier and a main
amplifier can use it separately.
The loudness control, a tapes monitor, a headphone jack, a muting circuit which can carry out the play monitor of the
recorded source while recording, etc. are carried.
Two speaker outputs,
A and B, are carried and it can reproduce independently or simultaneous.
||Solid-state Integrated Amplifier
|<Power amplifier part>
|Music power (IHF) :
|Effective output :
|Cross modulation distortion
|Power Band Width (IHF)
||20Hz - 30000Hz (distortion 0.5%)
||20Hz - 80000Hz, ±1dB (by normal output)
|A hum and a noise (IHF)
||Closed circuit: 100dB
||Maximum output voltage: 3V
voltage: 1V (150ohms)
||0.1% (Output-power voltage)
||20Hz - 50000Hz, ±1dB
|A hum and a noise (IHF)
||Volume min: 100dB
Phono1, 2 (closed
Tape Head 19cm/sec.(closed circuit):75dB
AUX1, 2 (open
Tape Head 19cm/sec.:1.5mV/200kohm
MIC: 3.5mV / 10kohm
Tape Monitor: 150mV / 100kohm
||Phono1, 2:37.5 dB
|Loudness control (volume 30dB) :
||- 20dB (20Hz - 20000Hz)
||2SA561x2, 2SC281x2, 2SC369x2
A total of 22 stones
A total of six stones
||AC100V, 117V, 220V and 240V, 50Hz/60Hz
||Width 382x height 111x depth of 267mm