Pioneer SA-50A
¥ 25,900 (around 1971)
Commentary
A stereo pre-main amplifier developed to enjoy component stereo at an affordable price.
The power amplifier section uses a quasi complimentary service SEPP circuit.
Equipped with two Phono and two Tape Rec/Mon connectors.
There are also two speaker outputs.
Tone control is an 11-step quick-stop type.
Model Rating
Type | Stereo pre-main amplifier | ||||
Circuit system | Quasi complimentary service SEPP method | ||||
Music Power (IHF) | 44W (4 Ω) 36W (8 Ω) |
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Effective output (1 kHz) |
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Harmonic distortion factor | 0.5% or Less (Effective Output) | ||||
Cross modulation distortion factor | 0.7% or Less (Effective Output) | ||||
Output Bandwidth (IHF) | 20 Hz to 40 kHz | ||||
Frequency characteristic | 30 Hz to 50 kHz + 1 -2dB | ||||
Load impedance | 4 Ω ~ 16 Ω | ||||
Damping factor | 40 or More (8 Ω, 1 kHz) | ||||
Input Sensitivity / Impedance (1 kHz at effective output) |
Phono1, 2 : 2.3mV/50k Ω Tuner, AUX, Tape Mon1, 2 : 200mV/100k Ω |
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Recorded output | Tape Rec (pin jack) 1, 2 : 200 mv Tape Rec : 30 mV |
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Tone Control (3 dB step) | Bass : 100 Hz, -11dB to + 12 dB Treble : 10 kHz, -10dB to + 9.5 dB |
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Loudness (Volume -40dB) | 100Hz:+10dB 10kHz:+5.5dB |
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Hum, noise | Phono : 75 dB or more AUX : 90 dB or more |
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<General> | |||||
Power consumption | Rating : 40W Maximum : 75W |
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External dimensions | Width 330x Height 118x Depth 316 mm | ||||
Weight | 5.5kg |