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| Pioneer SC-100 |
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| 82,800yen(around the 1971 time) |
The preamplifier of a highest-class
specification in which all were summarized by the silicon transistor.
Phono which can use three pickups by turns is carried, and since MC
amplifier is built in, MC cartridge can also be used. Moreover, Phono2 can
switch an input impedance to three steps.
Since the input selector is
divided into two lines of the Loule Bell system and a high-level system, the
position which is not used at the time of a selection can be made to bypass.
The equalizer amplifier has adopted the three-step hardwired-connection
E-E feedback type which uses a low-noise silicon transistor.
The
full-scale attenuator type of a 2dB step is adopted as a volume.
Moreover,
the 15dB 3 step lever type attenuator which can be used also as a muting switch
is also attached.
It is considered so that it may have a margin also in
a power transition by adoption of the constant-voltage regulated power supply by
zener diode and may follow.
The tone control has adopted the rotary
system of 2.5dB step 11 contact which Bass and Treble became independent of.
Moreover, the filter has adopted the electronic formula which does not
affect a tone quality but omits only a noise sharply, and Low/High is a two-step
revertive about a cut-off frequency.
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.JPG)
| Form |
Stereo preamplifier |
| Output voltage |
5V |
| THD |
0.2% or less |
| Frequency characteristic |
5Hz - 50kHz |
| Input sensitivity/impedance |
Phono 1:1.5mV/50kohm
Phono Low:
0.08mV/450 ohms
Phono 2:1.5mV/20, 50, a 100kohm switching
Tape Head:
1.2mV / 150kohm
Tuner, AUX1, 2, Tape Mon:80mV /, 150kohm |
| Sound-recording output |
Tape Rec (pin jack): 80mV |
Tone control
(2.5dB step) |
Bass: 10dB - 50Hz-+15dB
Treble: 10kHz,
±12.5dB |
| Filter |
Low filter: -3dB (30Hz, 60Hz)
High
filter: -3dB (6kHz, 11kHz) |
| Muting |
- 15, -30dB |
| A hum, a noise |
Phono: 70dB or more
AUX: 70dB or more
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| Power consumption |
Maxima: 5W |
| Dimensions |
Width 420x height 170x depth of 295mm
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| Weight |
6.5kg |
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