RE: My K3....Audio seems to be totally cut off below 300hz. My subwoofer is unhappy. What's with that? My 870 , 7800 and O7 rocked but this K3 is "bassless". Yes I tried the RX EQ, passband etc. Event he waterfall is cut off past 300hz when trying to do digital. N4LQ Steve Ellington N4LQ at insightbb.com