SS vs BE 4x12: Back Differences?

[Junk Yard Dog]

I thought I read there's differences. The BE is particle board and the SS is Birch.

Is that true? If so, what is the difference in sound/feel?

 

[CrazyNutz]

Many years ago the BE had a particle back. Now they all have Birch (AFAIK)

 

[Junk Yard Dog]

Many years ago the BE had a particle back. Now they all have Birch (AFAIK)

OK, do you know what year they changed? Thanks!

Mark

 

[RACKSYSTEMS]

Around 2013