Hi:
Glad to help. I have just printed out the spec sheets yesterday so here is what the 3803 has in addition to 2803:
1. Pure Direct with AL24 processing - in lay terms, excitement for my grandfather's turntable, as this shuts off all digital circuitry and lets the amplitude modulation of analog phono flow smoothly and undistorted.
2. Better tranny with large capacitors, still no match for Riachard Gray's power co.
3. Audio Delay Function, when the speed of sound gets lost in A-D-A-D conversions.
4. Extra opti and coax inputs.
5. VIDEO SIGNAL UPCONVERSION, all the way to component, but this will be obsolete in 5-7 years, when the firewire, VGA connnections will become universal in HDTV. Kick my balls if i'm wrong, a la HTF

)
6. Multizone video out.
Hope that i did not miss anything.
Bob