Oh yeah, thats another point for speakon.. You can get them in 2, 4, and 8 conductor..
and if you connect a 2 into a 4 or a 4 into a 2 (if you've got the keyless variety), you're still only engaging pins +/-1. Good or bad, thats up to how the equipment is wired, but many of the pieces of gear I have, its usually not going to end in a puff of smoke..
Probably the only 'con' is the fact that there are so many choices and options for speakons now. But even the 1/4" has quite a few more.. so I guess that evens out
