I don't need to try reading I already can.

Are you saying that three transport from three different manufactures perform
identically? Affraid not, there are to many variable factors, buffing the
signal using a cmos chip being just one of them. This is all I am interested
in.

As you are obviously into digital audio can you explain why the digital signals
differ when viewed on a scope and how the digital filter reacts to the visable
differences seen and how it effects the performance of the filter.
Regards