hey, im after any information and personal opinions anyone can give me about celstion greenbacks. I am putting new speakers in my vox ac30 and i am leaning towards putting greenbacks in instead of alnico blues coz i use a java boost mainly and use the vox for more crunchy distorted sounds (sounds like an old marshall with the java boost, the way a marshall is meant to sound). If anyone strongly objects and thinks the blues (or any other speaker for that matter) would be better please let me know.