The centerpiece of every W.H.E.N. system is the Audioaccess AVR21EN, a high performance surround receiver that incorporates exciting new technologies from Audioaccess to enhance the whole house and home theater experience. It features a cutting-edge digital amplifier design and every popular surround sound processing technology, including Dolby Pro Logic IIx, DTS Neo:6 and Logic 7. Furthermore, the patented EzSet equalization technology makes fine-tuning the system to the particular acoustic needs of the listening space virtually automatic. Outstanding audio, and DCDi by Faroudja® video Audioaccess has been producing premium quality custom audio systems for more than 20 years. The AVR21EN continues that tradition and extends it to the world of home theater and video. In addition to its comprehensive sound-processing capabilities, the AVR21EN includes DCDi by Faroudja video-processing technology. The award-winning DCDi by Faroudja codec effectively up converts standard definition video pictures to the HDTV format (to 1080i via an HDMI™ output), enhancing viewer enjoyment and extending the useful life of existing DVD libraries. But it also features something unprecedented: control of up to six external A/V sources and two internal AM/FM tuners, and two-way remote routing of composite video and digital audio and control signals. The system extends audio signals throughout the home by using a proprietary Digital Signal Transfer bus. As the first 7.1-channel receiver with an onboard multizone system controller, the AVR21EN doesn’t just provide outstanding A/V performance – it reduces system complexity and improves ease of use. With intuitive on-screen programming and a built-in library of IR codes, the AVR21EN can be set up to control a variety of components and whole-house features without the use of a PC.