One of those greenies you got from me. I used the greenie with my Bergs and altough is was adequate( actually on the edge of inadequate IMO), the difference in tonal clarity and punch is substantial with the higher power models. Just my $.02
+1 to your .02.
When I first plugged into my Amber/Berg12 I was blown away.
Magical sound. The head room is killer. Unfortch, I'm already thinking of selling it. If only I played out more. As is my gigs are 90% slab.