Interaudio Speakers Model 4000 loudspeakers. Bose. Classic Vintage.
Bose Interaudio 2000 Bookshelf Speakers | eBay
Vintage BOSE Speakers Interaudio alpha 3 a3, 15 to 150 watt MADE IN USA, 3-WAY BALANCED, fully tested, sounds AWESOME! for Sale in Los Angeles, CA - OfferUp
Bose Interaudio 2000 Home 2 Way Bookshelf Speakers - YouTube
Bose Interaudio 2000 2-Way Bookshelf Speaker (1) 90W Max Black Wired | eBay