Realistic 31-1987 EQ. Don't let its small size fool you. This little gem is amazing and will improve the tonal balance of your audio system. The Pioneer receiver is being used for demo purposes and is not (yet) for sale.
Specifications:
Gain: ± 0dB
Frequency response: 5Hz to 100kHz
Signal to Noise Ratio: 80dB
Total harmonic distortion: 0.02%
Control Range: ± 12dB
Frequency Bands: 60, 240, 1K, 3.5K, 10KHz
Dimensions: 10-1/4 x 4-3/8 x 6 inches
Year: 1979