1970's JBL Monitor Lineup (clockwise from top left) 4310, 4325, 4320 and 4350 © Stereo Sound Publishing Inc. (Japan), Courtesy Koji Onodera

    1970's JBL Monitor Lineup (clockwise from top left) 4310, 4325, 4320 and 4350 © Stereo Sound Publishing Inc. (Japan), Courtesy Koji Onodera

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