As I am pondering a system option for my VERY portable PA to be used exclusively for wedding ceremonies, I'm at a crossroads on whether to use a powered mixer and passive 10" PA's or run powered speakers.

I've used 50' speaker cables (12 awg) for years without any noticeable degradation in sound or "punch", but feel extending past that might be pushing it. I do foresee the potential that I may be set up a good 70' out of the way from my speakers on occsasions, depending on the setup. So I'm thinking the XLR signal cables would be the smarter way to go. After all, 100' snakes in PA applications are commonplace.

Opinions?