Hey guys, I just acquired a Sunn 215s. I want to open it up to check out the speakers, but I am not sure how to go about this, and I definitely do not want to damage it. The only screws it has are on the Sunn logo plate and on all the metal corners. I am not sure if I can just pull out the grill cloth or how this really works. If anyone has any ideas of how to accomplish this, I would appreciate the information!