Ive tested out some speakers and even took out the cones from thier cabinets so its expose to the air. One of them was a paper cone material that came from a Yamaha satellite speaker and the other was made out of some kind of Polymer cone from another Yamaha satellite which was a newer version of the paper coned one. They are both 5 1/2 inch drivers and both tested them out. The paper cone material driver sounded more natural and more of like a soundstage feel to it. Compare to the Polymer cone. I have heard other speakers that have some kind of materials built within thier cones vs paper cones. Ive always prefered the sound of Paper cones so much better. I dont know why companies are turning to wierd composite materials like polyplas, polymer blah! Blah! blah!