Those will not work at all. There is no way they could crossover at 800 Hz, you would blow them right away. There is one of yours, but you can see from the photograph it is in tough shape. This is absolutely incorrect..those earlier 2 inch domes ironically are crossed over at a lower point than the kappa...usually at 5 and 600hz..kappas cross at 800...so 2-300 hz higher..ive been using those 2 inch domes for 2 years no problem