> If I turn OFF the KDSP2 the audio is fine. With it ON in either > SSB or CW, I get a lot of crackling when receiving a signal. The KDSP2 should not make a crackling noise. The cause of the problem has been identified. I contacted Tony directly to get his unit fixed. If your KDSP2 sounds more like Cracklin' Rose than Sweet Caroline, let me know and we'll get it taken care of. Lyle KK7P