Originally Posted by Frank
The reason I ask is that I seem to recall Meridian telling me that the apodizing filter was optimized for each product, i.e., the apodizing filter in the 861v6 was not the same as the apodizing filter in the DSP5200. Something about different processing power.
They are all exactly the same, otherwise it would not work. Please read introduction section of the Wiki page.

@Ian, the reason why apodizing does not work optimal in DSP speakers is just the location in the chain where the apodizing occurs. Meridian stated many times that apodizing should happen as early in the chain as possible, thus preferably in the source. I believe the people that upgraded their 800 reported improvement over using the 861v6 for apodizing ... this proves above point.