Audio Database

Image of SC-70
Commentary

Compact stereo preamplifier.

The equalizer amplifier is a 3-stage direct connection EE feedback type using silicon transistors.
In addition, an FET is used for the tone control circuit, so that there is no fluctuation in the mid-range level due to tone adjustment and the tone is stable.

Equipped with two Phono inputs and AUX inputs.

Accessories such as audio muting switch and headphone output are mounted.

Model Rating
Type Stereo preamplifier
Output voltage 4V
Harmonic distortion factor Not more than 0.1%
0.05% or Less (at 2 v Output)
Frequency characteristic 10 Hz to 60 kHz
Input Sensitivity / Impedance Phono 1, 2 : 4mV/50k Ω
Tuner, AUX1, 2, Tape Mon : 250mV/220k Ω
Recorded output Tape Rec (pin-jack) : 250 mv
Tone control
(3 dB step)
Bass : 100 Hz, -9dB to + 12 dB
Treble : 10 kHz, -12dB to + 9 dB
Muting -20dB
Hum, noise Phono : 80 dB or more
AUX : 100 dB or more
Power consumption Maximum : 5W
External dimensions Width 300x Height 115x Depth 254 mm
Weight 4.1kg