As the integrated amplifier that introduced the ES series, the TA-1120 was the first Japanese stereo amp to feature an all-silicon transistor. Its high output and low distortion were unmatched by vacuum tube amps. On the aluminum front panel, controls are neatly organized into simple knobs and levers. In particular, the coordinated function knob and lever at right show innovation and originality. The component's clean, elegant design was also acclaimed.