The JVC RC 838JW Boombox was made sometime around 1978 and was considered large for it’s time. It’s measurements were 20″ wide, 5.8″ deep, and 12″ high. It also boasted what the manufacturer called the “Biphonic System” which was a binaural or stereo wide function
This boombox has AM/FM/SW1/SW2/SW3/SW4 radio bands along with two 6.5″ woofers and two 2″ tweeters. The “JW” suffix meant that the boombox could be used at 110 volts or 220 volts AC.