I would like to add a Horn to my Ampeg 810e

[jamiesonk666]

Hi,
can any body who knows better please help me.I need to add a Horn to my Ampeg 810e. I'm not too keen to butcher me box and want to build a external (small) encloure. i run a Line6 hd750 4ohm into a 8x10. i could probably get a seperate amp or build one.
What sort of resistor cap combo wotld I need to run it??

[icastle]

If you are going to use piezo horns then you don't need resistors or capacitors.
If you're using non piezo horns then you'll need a crossover - a little more sophisticated than just adding a resistor or capacitor.