* Very secure (locking) connection
* Easy to wire up - no soldering (they have screw connections)
* Is the new industry standard
* Will take heavy gauge speaker cable easily (eg. try wiring an XLR connector to take 12 gauge speaker cable)
* 4 post version can be easily wired for biamping
Cons:
* Relatively expensive
* You will need to buy or make up adapters for connection to non-Speakon equipment
Thanks Dave, I forgot that one. If you're using 1/4" jacks for speaker connections, the point of contact is only the tip of the plug, which is not very efficient if you're trying to pump large wattage to your speaker.
So then the answer as far as sound quality would be yes.... At least as far as clarity when delaing with high wattage/peak power...... at least on paper that is ;-)
There is a safety issue here too. There is a lot of current coming out of power amps. You can't shock yourself with the speakon connectors. It was that issue that inspired their development. I think that banana jacks have been banned in some places for that reason.