[Elecraft] [K3] RX Audio Distorted on FM

[Pete-Astound]

Happy Thanksgiving to All,

Just installed the KFL3B-FM Filter to my older K3.
Tuning around on 10 this morning I heard a station, but 
things just didn't sound quite right.  I fired up the 817 
and found that the transmit audio sounds great, but the 
receive audio sounds distorted as though it were being 
overdriven.  I've update all the firmware and haven't been 
able to find any references to receive audio.  Any suggestions?

Thanks..

Pete - WD6DKW