I have a pair of Polk RT5's. There is no sound coming from one of the tweeters. I swapped the R and L speaker so I know the problem is with the speaker not the receiver. I'd like to buy a replacement part from Polk to repair the speaker to keep the cost down. But I don't know what the problem is. Do I replace just the tweeter, or the driver or the crossover?
Thanks in advance for your help.