More confused Dave. I have a pile of EV SX300s - probably 12 or so, and we use them for all kinds of things. Just a few days ago, we had a row of brass players. Two saxes, trombone and trumpet and they each wanted a monitor, and all wanted the same feed. I've got some plastic boxes, each with three speakon connectors. One is input, so the 1+ goes to out socket 1, 1+. The 1- connection goes to the last socket 1+ and then 1- back to the input 1-. Plug in a speaker to each outlet and they both work and the amp sees 16Ohms, not 8. Do the same with the other pair and in parallel the amp then sees 8 and is happy. To be honest it's find seeing 16, you just need to drive it a bit harder. Or the other connection possibility is one splitter, then daisy chain two speakers from the first two - that's a 4 ohm load, but with the splitter box, it's back to 8. I've been doing this for years and it solves all the problems.
It can go wrong, when people don't think - you can have two in series, paralleled with one other - and that one is just louder, and this can sometimes even be useful. I don't use them as much now I have plenty of spare amps, but two in series with two in parallel works 100%, and the additional inductive load and the change to the damping factor doesn't upset the amps - most of which can drive down to 2 Ohms, so the occasional miswire to 4Ohms is never an issue. On occasions I've used the series splitter with 4 speaker, going up to a 32Ohm load, and it's strange to see a so much amp power producing so little output, but with a big amp, you can do this with no problems. 6 12" plastic boxes either side from a single stereo amp is a handy thing to be able to do.