I haven't heard the diamond tweeter version of these speakers, but 802s are a significant upgrade to the 803s. When I compared them in 1998 on the same system, the 803s had the typical "box" speaker sound to them. The 802s did not. I surmised the difference was because of the Marlan enclosure on the 802's midrange or possibly a stiffer cabinet. My wife and I tried to sell ourselves on the cheaper 803s, but alas, we bought the 802s. No regrets, and still own them. I have not heard the 800s.
Relax, have an Atwater Block Brewery Vanilla Java Porter and listen to some Savoy Brown...
Relax, have an Atwater Block Brewery Vanilla Java Porter and listen to some Savoy Brown...