This happens when I use test tones. I recently made 99 .wav tones (5 frequencies per octave) and am frustrated that the preamp can't attenuate upon changing to the next tone. These sine waves are at normalized amplitude. What I think is happening is the amplitude is not zero when stopping one track, so a click occurs. Why the second click occurs for the beginning of the next track, I don't know (my samples are at zero on start). The pre amps seem to be wide open. On CD players, the audio preamp turns off between changing and unmutes when the track starts.

Any ideas on fixing this???