The Sansui AU-101 amplifier has very inconvenient way of attaching speakers. Basically, you need speaker wire with a spade connector. The wire is tightened by a screw. It is very easy to short two posts when something slips. Even this amplifier is used as a headphone amp, I have decided to upgrade the speaker binding posts. I bought cheap new posts on Ebay and waited couple of weeks to get them delivered from China. The quality of the binding posts is surprisingly good for such inexpensive product.
The existing screws in Sansui are mounted on a plastic panel so they are not grounded with chassis. This made the whole operation a lot easier as the binding posts I bought were not isolated. After removing the screws, I have flattened the remaining mounting hardware and clipped the tabs in the back. The new posts screwed nicely in the old mounting hardware. All I had to do was to secure them with the nut and washer in the back. The whole operation took less than 10 minutes as there are only three wires that need to be soldered.
Here is a shot before:
And one after:
I highly recommend this mod to anybody that owns this amplifier (or similar one).