I want to run B4II through a pa amp and speakers rather than through a keyboard amp. I have a chance to buy some cabs contaning 15" speakers with 1" drivers. The crossover point is 1.6 Khz. I don't know a huge amount about speakers but isn't this crossover rather low? I'm wondering if I used them for B4II whether the 15" speakers would end up doing any work at all. Does anyone know the frequency range of a Hammond? It strikes me that even the lowest notes could contain more high - mid frequencies than low because of the layered harmonics. Any thoughts welcome.