Marantz Superscope. Few style points, but great quality from a leader in magnetic tape technology. AM/FM tuner, cassette recorder, “stereo matrix” (wide effect) through its 2-way, 4 speaker system. There were one-speaker mono predecessors, but this is the earliest we found to fit the configuration of what we now know as the boombox. Sold for over $200 in 1976.