speakerjones
my hat is all
I'll throw this one in the mix. I have the 8" version in my Vibro Champ, and it's a total winner. They're manufactured by Warehouse to Jupiter's specs. The 12" Ceramic is just shy of 4 lbs.
http://jupitercondenser.com/product...can-ceramic-guitar-speaker-super-ribbed-cone/
http://jupitercondenser.com/product...can-ceramic-guitar-speaker-super-ribbed-cone/