Doc
We found the same thing. We have put a lot of effort into the balance of making a great sounding signal on a great receiver with a wide pass band and also making it sound good on a regular
CB. Basically, it can't be done. The pass band of the
CB receivers are basically communications quality and more restricted than that of a broadcast receiver. If we tailored the mauldulator input audio and pass band for a good hi fidelity receiver, we found it could sound bad on a
CB and also have many sibilance artifacts. By necessity, we had to limit the audio pass band to a range that would not cause this. We just limited it to the best case that regular CBs could accommodate, and then a little more if we wanted to play around. In essence, we could have the 18 wheeler, but we made it accommodate parking in a normal street. The asymmetry still provides the perception of loudness, and the undistorted, although pass band limited audio, gives you the blank palette to work with.
Tink