A:Answer Hi radio, Thanks for your inquiry. Yes, you can up to 4 speakers to the unit, but, it is not recommended since this receiver is a 2.0 channel system and you can only utilize it by connecting the left and right channel speakers. We suggest checking out other Sony receivers such as the STRDH590, STRDH790, and STRDN1080 models to connect your front, rear, and center speakers. Hope this helps! -Sam