What is unecessary about Speakons? ;-)
We had what looked like 3 very reasonable well-articulated needs:
(1) Something that won't have the wire pull from the plug easily
(2) Won't easily pull out from the posts
(3) there is no exposed metal carrying current
(note that Speakons do this, whether mated or not.)
Most of us would also like:
(4) Impossible to mate with the wrong polarity
And a few might like:
(5) Can connect up to 4 pairs of speakers with one plug.
Then there is the matter of modifying all my expensive speakers to accept them. Probably kill the re-sale value.
Many of the speakers and power amps that I buy come with them.
If your speakers or amps don't come that way, you could make a short adaptor with a Speakon on one end, and locking bannas on the other.
Furthermore, the it is not unusual for speakers that come with Speakons to have two connectors in parallel, which meets the following need:
(6) Has a stacking (or daisy-chaining) option.
and of course:
(7) Works well with heavier speaker wire.
OK, so don't mind me! (I'm trying to pick up another lost cause to go with ABX, which is steadily loosing its fun factor because it is becoming so mainstream. ;-)