I have set of older Polk speakers that I think I blew the tweeters in. I jumped the fuse on the back of the speakers (bad idea. I know) and turned them up pretty decent. Now the tweeters have a constant hissing sound coming from them that gets louder as I turn the volume up. I seem to also be getting occasional distortion. It is hard to tell though because the acoustics in my dorm room are about as bad as possible. Does this sound like a blown tweeter to you?
Assuming it is a blown tweeter, can anyone help me figure out what model these speakers are? The serial numbers start with 5B. Is that monitor 5B? All I can find in Polk's vintage speaker listing is the monitor 5, which does not seem like my speaker. I would like to ID these things so that I can order replacement parts.
Lastly, what kind of fuse should I run on the back of these things to avoid a repeat performance. It just says "small fuse" or something on the back. Thanks for any help you can give.