Features:

• 1 x pair of RCA phono level inputs with switch for Phono/Line input versatility (Phono Pre-amp with ground screw terminal)
• 1 x USB digital audio from a PC or Mac single RCA line level output for connection to sub. 
• 1 x Digital optical
• 1 x 3.5mm mini jack line level
• Bluetooth^® wireless technology
• Full featured IR remote