Introduced in 1977 the Technics SA-1000 was one of the most powerfull receivers ever made: 330 Watts per channel minimum RMS into 8 ohms from 20 Hz-20 kHz with no more than 0.03% total harmonic distortion. To capture the sheer dynamics of a live symphony, there was an equally dynamic amplifier section. Like 72,000 microF worth of high capacitance filtering, separate DC rectifiers, current-mirror loading and direct coupling. The results were impressive: tremendous reserve power, negligible transient crosstalk distortion and excellent stability. As good as all that sounds, Technics Acoustic Control made it sound even better, because it added low and high range boost and filter switches to enhance the tone controls. There was also a midrange control with a variable center frequency, 24 LED peak-power indicators and automatic load impedance detector.
