Please excuse what may be a dumb question, but here goes. I've got a 4 x 10 Bassman with one blown speaker. I don't want to put money into it because I'm amp-sitting it for a guy who went to Europe-- so I don't want to shell out to buy him a replacement speaker. If I just wire a bypass, it will create an impedence mismatch. Alternately I could wire in a resister, but that seems just as screwy. Anyone know how to disconnect the blown speaker so I can use the amp without placing the output stage at risk?