Getting my new-used rig in the mail soon. Eden XST 410, Hartke model 5000 250wt + 250wt head. Both have multiple output and input jacks. I was hoping someone could let me know if i need to use the speakon jacks, or 1/4 or what have you. Ohh, also I'm planning on getting an 800wt pf Ampeg head somewhere in the future, so if the cables could be used for both heads, that would be great.