TIL of the "King of All Boomboxes", the JVC RC-M90, which was produced in 1981. LL Cool J and The Beastie Boys made this boombox famous by including it on their album
JVC RC-M70 Cassette Boombox for sale online | eBay
JVC RC-M90 Photo #698383 - US Audio Mart
ArtStation - JVC RC-M90
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