I just finished a build using a 4W WOW speaker with a NB4. It works and is crazy loud, but after I finished I realized that the NB is supposed to have a max sound power output of 2W. So, what is the danger of having an overpowered speaker? Will it fry the board eventually? I see on TCSS preassembled nb4 modules for sale with an option for the 4W speaker, so does that mean it is okay to attach? Or should I really pull the speaker and rebuild with a lower watt option?