I think its important to note; that while I previously owned the 804S' for better low end extension- I found that I lost some of the special mid range clarity of my 805S' which prevented my selling them. I utilized both for two-channel listenings only. The 805-Di has allowed me the mid range clarity from my previous speakers but has also expanded the low end freq. response without the bloating or other cabinet resonance.
Finally, it was a lot easier to carry up 5-floors. Good luck and good listening.
