Dear Hazenhart! In this group arrangement, when 2 Wiim Pro Plus are working in a group, have you actually implemented a 2.2 active crossover like this? If I group 2 Wiim pro Plus, are they always in perfect sync with each other? Can there never be a delay? Because that's exactly what I'm thinking. I have a Pro Plus, I'd like to buy another one, and another stereo power amp. I'd group them, and one Pro Plus would drive the subs, and the other the 2-way wideband. But for this to work, they have to stay in perfect sync in all input modes. In such a case, in a multiroom situation, is one Pro Plus the Master? So is it theoretically possible to implement a 2-way active crossover with 2 Pro Plus? There will never be async or delay? Thank you