Description Beautiful set of vintage Akai SW-30 "Jet Stream" full-range speakers from the early 1970s, in good aesthetic and working condition. unfortunately there are small marks in the corners and one speaker is missing a sticker. See pictures. These iconic bookshelf speakers are highly sought after by vintage audio enthusiasts for their unique, slim design and surprisingly warm sound. Featuring Akai's proprietary "Jet Stream" acoustic design and a 4-inch full-range driver, they deliver a very pleasant, clear, and nostalgic listening experience—perfect for acoustic music, jazz, or as a stylish addition to a retro vinyl setup.