So I blew a speaker in my ampeg PR410. 4 ohms, 600w rms is the cab. All of the speakers have some serious wear like they're all about to rip like this one. Regardless, I need a new speaker. I don't have the money to buy all four, so I'm hoping this will work. http://www.parts-express.com/pe/showdetl.cfm?Partnumber=290-470 I want to use this website especially because they're like an hour from me, and I leave for tour in less than a week. I don't think that's the same watts as the other speakers (I think they might be 150)? am I going to **** my **** up replacing just one speaker with this? thanks for the help.