Stereo Integrated Amplifier (1979-81)
Pioneer engineers kept in mind a dynamic concept when the SA-5800 was still in the drawing board stage.
The choices of circuitry and design at that stage were based on what has come to be known as our Magni-Wide policy in amplifiers.
The policy does not dictate circuitry designs per se; nor does it restrict us to using tried and true circuit parts when something newer (and possibly even less costly) can be substituted without harm to musicality.
The policy does set ever-higher parameters in three critical performance areas, however: Dynamic response, Frequency range and Transient response.
Techniques of reducing noise and distortion (of many kinds) are employed to achieve these parameters in the SA-5800.
Power output: 25 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 40kHz
Total harmonic distortion: 0.03%
Damping factor: 30
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 76dB (MM), 98dB (line)
Output: 150mV (line)
Semiconductors: 3 x IC, 21 x transistors, 18 x diodes
Dimensions: 451 x 151 x 271mm
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