You are not asking the right questions because they are not designed for the same room. A room that is right for 803D will make the 804S sound bright and a room that is right for 804S will make the 803D sound boomy. So their tweeter and midrange performance is not what you should be considering.
Instead, you should be asking yourself how much bass your room needs in light of the electronics used. Afterall, bass is the main difference between the two. Only in answering this question can you determine which speaker is right for you.
Arthur
Instead, you should be asking yourself how much bass your room needs in light of the electronics used. Afterall, bass is the main difference between the two. Only in answering this question can you determine which speaker is right for you.
Arthur