On the Audio/Video Receivers like 310-5005, you have three different types of connection options: Analog, Digital and 5.1. Analog connections are used with the A/V inputs from an Audio/Video device (for example, DVD, CD, SAT, or VCR). Digital connections use the digital connection inputs (for example, Digital Coax or Opt. 1 & 2). The 5.1 connections have six 5.1 Audio inputs: Surround (Rear) Left, Surround (Rear) Right, Subwoofer, Center, DVD 5.1 CH Front Right, and DVD 5.1 CH Front Left.
