Before we continue, it is important to understand just how clipping the waveform can introduce a DC voltage. First, look at the basic waveform details (two complete cycles are shown), both before and after it is clipped ...
Figure 2.3 - Input Waveform Detail
The total shaded area shows that the area above the zero volt line is exactly equal to the area below, therefore, the signal is perfectly balanced and there is no DC at all. When the amplifier chops off (clips) the section below the line marked 'Clipping Level', the two areas are no longer the same - the area in the lower part of the waveform is smaller because some of it has been removed when the amplifier overloads. Since the upper (positive) section of the waveform now has more area than the lower (negative) section, the overall waveform has a positive bias - this is seen as a DC voltage. No tricks, no special effects, just plain old physics at its most basic level.
my bad this is what i was always taught reguardless clipping cannot be good.