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Paper Cones in HiFi?

I may be naive or uninformed but I've noticed several speaker mfrs using paper cones in speakers priced over $2k (ie Vienna Acoustics Bach and Sonus Faber Grand Piano). I always thought paper cones were for low end Radio Shack speakers.

Can some please educate me.

Thanks.
alivadariu

Showing 3 responses by cdc

cdc
1,866 posts
 
Paper is the most natural sounding to my ears. But it lacks dynamics and high volume capability.
To add to TWL's post, I think paper is good for absorbing unwanted resonances in the driver. Better than metal and polypropylene (that's a low end material Epos being an exception - there's always an exception)
cdc
1,866 posts
 
Tang-Band has a full range 4" driver made from bamboo coming out in May.
Qms = 1.499
Qes = 0.484
Qts = 0.366
BL = 4.80
Mms = 3.49 g

Compared to their W4-655sa 4" paper driver:
Qms = 4.35
Qes = 0.35
Qts = 0.33
Electrical Q being more important to damp than mechanical Q. But TB's typical paper Qms is no lower than 2.80. So the bamboo damps very well indeed.
cdc
1,866 posts
 
Hi Sean, I dunno, that was what I was told. I justified it when looking at total Q. The electrical Q seemed to have a greater impact on Qts than the mechanical Q did.
Anyhow, does this bamboo material driver look like a good choice? It retails for about $35 each. I can't put up response curves but above 14k there is an 8db plateau from 15-18k - that doesn't look very musical or accurate to me.
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