I'm sorry but I disagree. More power will only sound more dynamic if you're running out of power with your current amp. If your current amp is only very rarely hitting full power or clipping then more power will make no difference.
I don't know how loud you need to be but the reason we recommend 150-800W for the BB2 is because that's the most useful range of amp power. Most BB2 users are running 250-500W. The reason we recommend 800W* as an upper limit is because there is very little to be gained beyond that point but risk of driver damage increases vastly.
* 800 real watts, not 800 marketing watts!