A:Answer Hi Connection, thanks for your inquiry. Yes, you can hook up another pair of Sony - Core Series 5" 3-Way Bookshelf Speakers. You can hook up to 4 speakers with this unit. And you can get 2 sets of stereo channels (speaker sets A and B). You may check this link for more information. (Refer to page 14): https://www.sony.com/electronics/support/res/manuals/4726/f63b8edb2b154409daa55875111f95e4/47269071M.pdf Regards, Sam