b120

The Hartke B120 threads are a little outdated so I wanted to see if anyone was willing to offer some recent insight. It looks like a 1x12 combo at 120 watts, but I read the little thing actually has 2 12 inch speakers in it - one that faces forward and supposedly another that faces downward. I...

Does anyone know if there are any size differences between the Ibanez Accu-cast B120, B300 and B500 bridges? I guess what I am really asking is, could I easily change one out for another? As an example: is it just a case of removing the strings, unscrewing a B120, screwing in a B500, insert...