Let s begin with the obvious THX Select2 certification. It s your assurance that, in addition to the power you ll need to fill average-sized rooms with theater-quality sound (125 watts continuous from each of its seven amplifiers), other performance parameters like signal-to-noise and distortion are absolutely first class. Then there are the Marantz touches. A toroidal-based power supply. Current feedback amplification. An anti-interference copper plated chassis that s less than 16 deep so it will fit in more places easily. Adding to the audio flexibility is a 3rd Zone output (with an individually selectable source!) to make your SR8001 the center of a whole house distributed audio system. On the A/V side, the SR8002 features HDMI switching (version 1.3) for up to four sources and two display devices. And there s format conversion to HDMI with Time Base Correction so even your older video sources will look their best.