I know this problem.
The issue is actually that the nuts on the speaker AND/or the spades are too hard. If they were soft, they would deform just a touch and grip.
What you want to use are spring-loaded WBT terminals like these:
http://partsconnexion.com/connectors_spd_wbt.html
It is hard to tell, but there’s a spring molded onto the spade itself.
Best,
E
The issue is actually that the nuts on the speaker AND/or the spades are too hard. If they were soft, they would deform just a touch and grip.
What you want to use are spring-loaded WBT terminals like these:
http://partsconnexion.com/connectors_spd_wbt.html
It is hard to tell, but there’s a spring molded onto the spade itself.
Best,
E