I was thinking that I am the only one that like these terminals facing down but after talk to some friends found out that a lot of people like it face down.
I did mine on all the amps about 5 years ago.As Mike said it is a little bit of more then just loosening and turning.
For anyone who is interested in to do it.
The tools are very simple and this is what I was used.

The original view.

Remove the cover and this is the close up view of inside.

On each terminal you can see, 2nuts,3 washers,1 locking washer and the plastic piece.loose the first nut and remove it with the locking washer and the regular washer on each.


Now push the little circuit board back and loose the second nut. NOTE:You do not have to take the second nut and two washers off.Just loose it enough to able to pull the terminal out and rotate just like the picture.


Now you can put everything back just the Way it was.(do not over tight)


And you are done.

1.Do not do it if you are not comfortable.
2.This is for SST series not SST2.