Speaker binding posts with plastic covers

These 5 way binding posts unscrew (the type you and others are thinking of),

• Accepts up to 8 AWG wire, banana plugs, forks, spades, and speaker pins

they are ’mini’ size, smaller outer diameter to fit where/when nearby obstacles prevent the larger outer diameter of standard ones.

not sure, your spades might be too large for these mini sized ones.

IF your speaker cables are expensive, the connectors on the Krell could be changed

They DO NOT unscrew! You CANNOT use spades with these.

The crimper is for the bare end of a multi-strand wire. It ’melds’ (by crimping pressure) the individual strands into a semi-solid strand to then insert (like a banana pin) into the connector. (cut your spades off?)

there are two torx set-screws on the side of the connector. Tighten them to hold the now crimped wire end within the connector.

To remove wire: simply loosen the two set screws.

The solder is for the other end, inside the enclosure before tightening in place. You can solder the wire end after crimping it if you want to.

.....................

This $12. gizmo looks a whole lot like their $166. crimper

https://www.mscdirect.com/product/details/28718872?cid=ppc-google-&mkwid=%7Cdc&pcrid=&rd=k&product_id=28718872&gad_source=1&gclid=CjwKCAiA1MCrBhAoEiwAC2d64bb0AcvdS-hT1LOT4TEWddemjOD_s_RomLrA7dEcAjJwf2QyKXzsLRoCgzYQAvD_BwE&gclsrc=aw.ds

There are Spade to Banana Adapters, here's one, must be others

people are telling you their experiences with their connectors that do unscrew, like mine .....

the type you posted DOES NOT unscrew. read the full description

another spade to banana adapter, 

imhififan

yes, you show a type, like mine and most, that does unscrew, and perhaps all the way out is a possibility, that would be the definition of dumb luck.

The link OP posted,

perhaps he just thought they all looked/worked the same, so he just posted that one, it just happened to be the rare one that does not unscrew.

IF this goes on any longer, we will need a photo I think.

rfprice OP

well, considering that they were 'frozen', it's a good thing you asked/solved it before throwing the Krell in the bin!!!!

happy listening.