Thanks for the clarification-
haven't heard any of them actually.
i've read as a stand alone the first ones were better than the Modulus.
and the 4?
I have a set. I think 2's. They are heavy and solid. The Watkins woofer is is amazing with its dual voice coils, each with a different resistance. The Emit tweeter is something really special. The result is a small speaker that has way more (and better) bass that you would expect and uncanny presence. I have them in my RV up front and it seems as if there are speakers all over the front. I do have a sub but I really only use it for the lowest notes.
Always thought they would be ideal in a van/rv setup. The guy I bought my 0.3's had them in a van for many years. They were pretty crispy from the heat but played fine.
Jim