I certainly can.
I've not tried this as a direct comparison, but the difference between the D1 and Tablette is a little like the difference between the D18 and D140 MkII. The D1 and D18's are the ProAc everyone is used to - sweet, detailed, slightly warm, and pretty much sounds good with everything. The Tablette and D140 (and 115's for that matter) are a little leaner with slightly less warmth, and have a more vivid presentation, with more energy compared to the slightly softer 18's and 1's. Which you prefer can be personal preference, or a choice made by your amplifier, or even both. You'll only need to compare one the combinations I've mentioned to get a pretty clear picture of the differences I'm trying to describe.
To add to that, the D1's and Tablettes are more suited to smaller rooms, and the other models to larger ones.