Speakers that are meant to be positioned away from a wall benefit from connectors at the bottom at the expense of a little more trouble connecting. My Theils have dual bananas on the bottom and are very easy to tip and connect. Not so with very weighty units. For my AQ-4's under restoration, I plan to add a banana plug on the bottom, paralleling the normal connection on the back so that I don't really change the configuration of the unit.
John Y.