Which material sounds better for speakers construction? Wood, Ply or MDF?

Even MDF, if not fully covered, will change character in high humidity or dry conditions.  most companies cover their MDF with veneer and or paint to make sure this doesn't happen.  

They are using a ton of marketing terms.  I don't think there are any other companies out there that don't as they need to sell, lol.   It's all good. They make a nice speaker.  Some love them and some don't just like anything else.  

@dav, the only question I have of you is what model do you have that is made of all wood?  I can't find that on their site. Just MDF cabinets.  Maybe I misread but I thought you said that your speakers are made of wood???  Curious, that's all... thanks Pete

Forest Signatures!  

birch plywood

^says the guy with MDF speakers. Interesting.

Feed the speaker the impulse and rejoice or weep with the results.....
the cabinet stores and releases energy
how much, at what frequency and over what amount of time is critical
people do like all manner of distortion, coloration, etc....
the fact of the matter is there are few if any cost no object designs out there, so MDF in hands of capable designer is a very cost effective material.....