speaker question

Farmboy8

I have a pair of rti-8s run by a denon 3802. a while back i went to my room and turned on the reciever. it was late so i was playing it at a low volume i heard a buzzing sound. i just ignored it for a while and didnt think anything about it when it stoped. than about a week ago i was listening to deep purple and noticed that the left speaker (the one with the buzzing sound) was only producing the sounds of the instruments and not the voices. so i thought it was a bad speaker wire or something like that so i switched speakers to the opposite side and it still didnt work. so i came to the conculision that it was a blown tweeter. so than i noticed that the buzzing sound came back to the left channel. so i was wondering if the buzzing was a sound that was blowing the tweeter. i know its probably a stupid question but i'm just a kid that is worried about his speakers so any suggestions would be apprecited

[Deleted User]

Hello Farmboy8,
Was the buzzing sound constant? Or, only happening when the speaker was producing sound?
Regards, Ken

Farmboy8

constant it wasnt very loud and i didnt hear it unless i listened very closly but it was there constantly. thanks for the reply

[Deleted User]

Hello,
Thanks for the additional information. It is unlikely the low level buzzing caused the tweeter to fail. Most likely that was caused by excessive, very high frequency odd harmonic distortion caused by overdriving the receiver. When you're using your system pay attantion to the way high frequencies are sounding. As soon as you hear any stridency or brittle quality to upper sounds recognize that this is caused by overdriving or "clipping" your receiver. If you hear words that have an "S" at their beginning start to sound like they start with a "Z" or "TZ" this is an audible clue that you've got the volume set too high. You always want high frequencies to sound smooth, "warm" or "sweet" with no harshness, no "etched" quality (think of the sound finger nails makes down a chalk blackboard).
You would need to remove the damaged tweeters and send them to Polk Audio, 2550 Britannia Blvd., Suite A, San Diego, CA. 92154, please include a short note giving us your name, address and a copy of your sales receipt and we'll quickly have new tweeters on the way.
Regards, Ken

Farmboy8

what if i dont have the sales receipt. I bought the speakers from the fle market and dont have a receipt. I could just go buy a new tweeter if the sales receipt is absolutly necessary. Just let me know and thanks for the advice.
Thank you, Kevin