I'd also like to do this and add a sub of some sort as the standard speakers leave a lot to be desired, the rear speakers being particularly bad.
Doc: Once you install the sub, you turn the bass down on the RNS/RCD to two or three notches above minimum (depending on your taste), adjust the bass gain and cut-off freq on the sub. a The mid/bass speakers then mainly produce upper bass and mid range, distortion levels are reduced significantly and the overall effect is quite beguiling.
I have also found that the mid and treble levels have to be reduced by 3 notches from the centre value.
The weak link then becomes the treble unit which can at times sound a bit scratchy. I have the treble level one notch below the mid. This IMO gives the best overall balance to my ears.
The one good feature of the Dynaudio is that it has a very clean sounding treble driver. The mid-bass driver is no better than the standard one. I personally prefer the speed of the standard paper cone mid-bass driver to the plastic Dynaudio one which I feel is a bit ineffecient. Hence the need for the Dynaudio slave amp.
