I do not have an objective opinion because I was ready in a Cs 800 new generation that I slammed into the hands (DC) without abuse: I was worse than -10 dB.

Fortunately there was a 2 nd 800 Cs more recent.
The big problem with DDT also low power: it ill drive complex loads.

DDT acts apparently as a limiter to avoid sending a signal saturated or manage a signal that does not, or wrong.