G-120A

About the G-120A

The Luxman G-120A is a carefully built stereo graphic equalizer manufactured in Japan between 1980 and 1985. It features ten center frequencies per channel with a Q factor of 2.3, allowing precise tonal adjustments across a wide frequency range from 28 Hz to 14 kHz. The equalizer uses discrete components, low-leakage capacitors, and precision resistors instead of off-the-shelf ICs, ensuring high audio quality. It has a frequency response of 10 Hz to 100 kHz (±1.5 dB), distortion factor less than 0.005%, signal-to-noise ratio over 100 dB IHF, and channel separation greater than 80 dB at 1 kHz. Controls include 10 sliders per channel with ±12 dB range in 2 dB steps, separate sliders for left and right channels, a bypass switch, and an input attenuator. The unit consumes 20 W of power, weighs 5.2 kg, and measures 438 x 110 x 270 mm. It has one input and one output line with 1 V nominal level and 65 kOhm input impedance. The G-120A is noted for its meticulous restoration potential and classic silver front with black cabinet design.