Hi
You can upgrade components in a crossover yourself. If confused about the circuit, make a drawing of what it is now and carefully note values of components. You can easily get a portable test instrument that measures inductance. Plan on spending about $140 for it.
You don't really have to draw a schematic of the crossover, though I'd recommend that you do. This is not rocket science and not impossible. Find a local tech to help you if you need to.
The reward for upgrading cheap caps and inductors with something better will be better sound. You will not hurt the design if you stick to the values in the existing crossover.
Consider the whole project as a learning experience.
You can upgrade components in a crossover yourself. If confused about the circuit, make a drawing of what it is now and carefully note values of components. You can easily get a portable test instrument that measures inductance. Plan on spending about $140 for it.
You don't really have to draw a schematic of the crossover, though I'd recommend that you do. This is not rocket science and not impossible. Find a local tech to help you if you need to.
The reward for upgrading cheap caps and inductors with something better will be better sound. You will not hurt the design if you stick to the values in the existing crossover.
Consider the whole project as a learning experience.