Sansui SE-77 Stereo Graphic Equalizer Made in Japan. The SE-77 is a high quality graphic equalizer that provides 12 frequency bands per channel, two more than usual. The highest quality electronic parts are used so noise and distortion remain negligible. Full bi-directional tape dubbing facilities for two decks are provided. Center frequencies: 12 from 16Hz to 32kHz. Selectable equalizer range, ±12dB or ±6dB. Built-in LEDs in equalizer controls to visually display the selected equalization curve. Equalizer recording and bypass switches. In very nice condition, almost with no signs of wear. Please take a look at the pictures, they are part of the item description. Receiver will be packed with high care and sent with Track & Trace. Specifications Sansui SE-77: Input Sensitivity: 1V Output Level: 1V (5V max) Frequency response: 10Hz to 100kHz Signal to Noise Ratio: 110dB Total harmonic distortion: 0.005% Control Range: ± 12dB Frequency Bands: 16, 32, 64, 125, 250, 500, 1K, 2K, 4K, 8K, 16K, 32KHz Dimensions: 430 x 76 x 253 mm Weight: 3 kg. Finish: black