I have a similar question, am curious if either of these adapters (both still available in Jan 2020) worked on the Thiel's. It's mighty tight at the bottom where the connections are, one of my least favorite things about otherwise great speakers.
Speaker Connectors: Banana Plug conversion adaptor to spades
I have a pair of Thiel CS 1.5 speakers whose connectors will only accept spades. My problem is the Zu cables I have & want to use are banana plug terminations. Anyone aware of a high-quality connector/adaptor I can use to connect banana plugs to spades?
OldManDave
OldManDave