Paper Based Speaker Cone Question

I believe that paper is still the most life-like sounding cone material. No other material I've heard yet comes closer to creating the illusion of a natural tone. The vast majority of speaker cones still use it - from extreme budget to extreme high end. 

Implementation is critical of course, as usual. The only thing that would concern me is the durability of the cone surround. Rubber tends to last a lot longer than foam which tends to disintegrate after a number of years etc.

It's not obvious what material Walsh use 
in their surrounds from their website. Give them a call first if you're unsure.  

^ Paper cones are often paired with a doped paper or fabric surround. 

It may be considered a matter of preference but I myself often prefer paper cone material for its organic sound. I know that sounds like I'm a vegan or something but paper cones can do some things better than other material. Poly cones, kevlar, etc tend to provide a very black background and can be more punchy with electronic music but if you listen to jazz, classical or you prefer the "wooden" sound of John Bonham's drum kit, paper cones will give you a sound that is closer to the actual performance in my opinion. DALI even puts wood chips in some of their drivers for this very reason.

My AN-J's have paper mid/woofers and I could not be happier. Natural sounding detailed and musical in the extreme. I will probably stick with AN speakers and paper drivers in the future if I ever decide to change or upgrade.

I find the Mother of Tone web site to be an outstanding reference toward the understanding of this subject - this page in particular:

http://www.mother-of-tone.com/vibration.htm

... but especially the following page:

http://www.mother-of-tone.com/mother.htm

But read at your own risk, as you will not be the same after.