Speaker binding posts with plastic covers


My Krell amplifier has speaker binding posts with the clear plastic covers. Apparently these are for EU safety requirements. I want to use spade connectors and have no idea how to open these covers. I’ve wrestled with them but they don’t budge. I don’t even know whether they unscrew or pull out or whether there is some other method at play. Does anyone have experience with these?

 

 

rfprice

The channel-lock pliers have set the binding posts free, hallelujah hallelujah! Thanks, guys!

@elliottbnewcombjr 

 

Yes, you're right, I posted that photo of the 0765 because I thought it looked close enough. The amp literature doesn't say whether that is the exact connector Krell uses. 

@imhififan 

Thank you, thank you, for posting that diagram. That was exactly the thing confounding me most. The cap had distinct parts and I wasn't sure where I should be applying pressure and so didn't want to apply too much pressure anywhere. Even with the diagram I still needed the pliers but at least I had more confidence about what I was doing.