The Athearn Genesis model for GP7 250 has a steam generator.
I have all 3 numbers and there are small detail/paint
differences between the 3 (just like the earlier Chinese Red
versions they did). I would suspect this is due to the photos
they worked off of.
The Protos are much heavier, so I suspect they are better
I've corresponded privately with Eric Mumper and Lenny
Ohrnell of this list on what I found.
The main issue on the Geneiss units is the Tsunami 2 decoder
settings. The good thing is that it is a full blown Tsunami 2,
not a stripped down OEM version. The bad thing is Athearn
claims in the instructions that the decoder settings fit your
locomotive. That is not the case.
The Mars light was lit on both ends no matter what direction
you selected. I found each unit had function FX5 which is
assigned to F5 was using a Western-Cullen rotary beacon as the
light type. I changed it to Mars and that fixed it.
The assigned horn was wrong. The programmed setting was a
Leslie R3M. Two are Leslie A200 and one (Q 250) is a Leslie
The Prime Mover sound setting was inconsistent. One Q unit
had a dual 567, and two of the Q units had 567 - no
transition. I changed them all to just a plain 567.
The differences mean you need to read in the entire decoder
definition into a program like Decoder Pro to see what the
actual current settings are on the factory unit.
I also bought a Wabash unit. It had it's own set of weird
sound settings (like a 567 Turbo for the Prime Mover). Two of
the units run smooth and two jackrabbit. I'll need to speed
curve all of them.
I've attached a photo of a new Genesis unit with the recent
Proto. I've attached a image of Athearn Genesis unit 250. The
Genesis is on the left and the Proto is on the right. I also
plan to run them separately so I don't really see any issues
after fixing these sound/speed curve issues. They are both
very nice sets of locomotives. As Eric wrote me, they are way
better than the old Athearn "GP9" Chinese Red unit with the