So ive gone to my near wits end with my used rig. Carvin amp works. Its been run on another cab and plays fine. Clip and compression lights blink when playing. But on my cab its a no go. I took the speaker apart. The voice coil was a little nasty looking like yellowed glue. Had a small brown line on it. Maybe a burn? A black blotch down near a solder connection and some seeping glue through the coil wires. Looks a little rough but I get no scraping sounds, its not seized, the speaker isnt torn... But I get no sound. If the rig sits over night and I power up I may get a second of audio. Mostly like a loud pop and then it goes silent. The best ive gotten from it was tapping on the cab and getting about 30 seconds of very low muffled audio. Its mostly silent and if anything I get a second or 2 burst of the loud pop. Are these symptoms of a blown speaker? Should I look into the BW basket/cone replacement? Its a 1502 8 ohm. What would be the best place to get the replacment?