I was looking the datasheet of the driver i will use, and it has a response graph were it is shown coupled to the horn i will use (lucky me). There is an impedance peak of 13ohms at around 900-950Hz. Since i will be crossing at 800Hz i thought there maybe a problem, like a shift in the crossover frequency. If that is the case, what should i do? Recalculate the crossover components for a 10-13 ohm load?
Well, thats all for now!

Thank you for your help!