Speaker binding posts with plastic covers

Can you not just unscrew them? I think the tabs on the two pieces of plastic 'covers' are there to facilitate that.

They aren't for personnel safety and not required by any code, they are to protect your amp from accidental shorting which is the most common cause of amp failure.  (Everyone says "it just failed!!!").

Usually you can unscrew them with your fingers and put a spade in. 

Jerry

If they just unscrew, then they are very very tight. I'll get some heavy gloves and try again. 

If all else fails, send an email to the manufacturer?  

just unscrew... they may be screwed on tight from the factory,,, work them loose with a firm but gentle hand