Tukans have very different kind of speaker terminals. Banana plugs only.
Check here:
https://forums.linn.co.uk/bb/showthread.php?tid=29844
just make sure you don't unscrew all the rings at the same time, the positive and negative from left to right. They can drop into the speaker cabinet
Check here:
https://forums.linn.co.uk/bb/showthread.php?tid=29844
just make sure you don't unscrew all the rings at the same time, the positive and negative from left to right. They can drop into the speaker cabinet