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Looking for input: Best material for mid range cone

I had a surprise last night when I switched speakers in my system.  I've got a few pairs, but had been listening mainly to some Ascend Sierra 1, which have a polypropylene cone with a soft dome tweeter in a bookshelf design.  Anyway, I've got a pair of Tannoy Precision 6.1's, and swapped them in.  

The sound was noticeably different.  Piano sounded better, vocals had a finer quality as well, and the whole sound seemed a little more lively.  Now the Tannoys have silver interior wiring, a titanium tweeter in a coax design and are only rated for 75 watts. The cone material is some kind of pressed paper fibre.  And they are voiced to somewhat push the midrange.  But the sound was compelling.

I'm just wondering about cone material because some old Paradigms with Polypropylene were really not up to snuff, but they were quite old.  Any thoughts?
213runnin

Showing 1 response by chrisr

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chrisr
542 posts
 
I have owned rega rs5, which utilize paper cone for both midrange (5") and woofers (7").  The midrange on these speakers was outstanding - natural and transparent, it is really their big selling point.  I have never got the same with kevlar (B&Ws at twice the price, and Wharfedale at equivalent price).
The new line rx also employs doped paper cones... Haven't heard them; I am not sure how they compare to the rs.
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