POLY sub woofer

[wingman]

Is a POLY corne ok for sub ?

 

[bhg41088]

i saw praise on the poly material for cones a while back. Cant remember what thread. Ill look.

 

[BillFitzmaurice]

It's not what you make it out of that counts, it's how you make it. Dayton Titanic sub drivers, for instance, are very well respected and they use poly cones.

 

[Mark25]

i saw praise on the poly material for cones a while back. Cant remember what thread. Ill look.

me too !! i found this though, which could be of interest:
Poly vs Paper vs Metal by John "Zaphoid" Krutke who is Zaph on DIYAudio.

 

[markp]

Some poly is okay but it is generally thought that paper/fiber is better for a sub for a few reasons. It is better damped than poly and can be made thicker for increased strength without the mass of a similar poly. It also lacks the higher freq breakup modes of some poly cones when driven at high spl levels.

 

[tiroth]

Dayton Titanic sub drivers, for instance, are very well respected and they use poly cones.

??

The cone is manufactured using the finest grade pulp reinforced with Kevlar fibers and sealed with a polymerized coating

It's treated paper, not polymer.

 

[BAM]

It's actually kevlar-impregnated paper on the new Titanics but on the first-generation Titanic drivers the cone was indeed poly.

 

[tiroth]

Touche. MKII and MKIII both use the composite (paper) cone. I guess they felt the name was too good to change when moving from poly to paper.

 

[Bull]

reply

Paradigm Monitor series uses clear, see through, poly cones for its bass drivers and get good reviews. So poly cones can be good.

 

[Bull]

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And this nice subwoofer made by Pioneer from parts express has a see through poly cone