Soundcraftsmen - SP 4001 Equalizer - Original Magazine Test Report - 1980

ADC - Sound Shaper Three Equalizer - Full Original Test Report - 1980

ADC - Sound Shaper Two MarkII Equalizer - Full Original Test Report - 1980

Realistic - 10-Band Equalizer - Original Magazine Ad - 1980

MXR - Equalizer - Original Magazine Ad - 1980

Nakamichi-Soundcraftsmen - Original Magazine Ad- 1980

Lux/Spectro - Amplifiers/Equalizer - Original Magazine Ad - 1980