Hi guys, I have recently picked up a B25B cabinet that needs reconing. It's original speakers were made to accomidate a 55w tube amp. I spoke with a local shop and they say that they can recone the speakers in such a way that they would have higher power handling. In case you are not familiar with this cab, it's a late 60s or early 70s 215 cabinet in a 5.3' box with a single 2" x 4" rectangle port. How would one do that? Also, if you do that, what effects might you feel on the tone?