I have a pair of Polk Audio SDA 3.1tl's. Recently my right channel has lost all dynamic range when listening to music. The left channel is normal, as for sound quality, but the right channel sounds flat. It's as if all dynamic range has been lost except for the mid range. All drivers are working in each speaker, all connections have been checked, and my pre-amp and power amp have been checked.
Could there be a problem with the crossover? or another aspect of the speaker?
I would appreciate anyones help!