Repairing an RCF crossover

[Rik (ESA)]

Afternoon friends,

Seemingly the crossover in our RCF 905AS is jiggered - sub works fine but the sound it sends from the 2 outputs to 2 tops is horrendously crackly, oddly a slightly differing crackle for each channel! Have troubleshooted all options but certainly points to the crossover as the issue - the sound still comes through but the crackle is always audible.

Any suggestions to repair, or are we to run it through an aux and remove the crossover from the equation...?

Help much appreciated!

Thanks,

Rick