The Athearn HO scale Ready-to-Roll Electro-Motive Division SD40 features many roadname-specific details. The model also features a SoundTraxx Digital Command Control (DCC) sound decoder. Watch the SD40 work a freight train on the Model Railroader staff’s Troy Branch model train layout.
Video: Athearn HO scale SD40 with SoundTraxx DCC
By Angela Cotey | January 26, 2016
| Last updated on December 3, 2020
The Athearn Trains HO scale locomotive features a factory-installed SoundTraxx Digital Command Control sound decoder
I’m a newbie. After a little looking I thought they were the best deal going for a starter engine with sound. Bought one and was happy with the performance so I bought another one to consist with. Took a little time because of my learning curve. I’m happy with the results.
Horn comments aside, I think it is just too bad that Soundtraxx didn't include dynamic brake sounds on this particular decoder. I realize they are trying to keep costs down, but, come guys give us the proper noises. If you are going to eliminate sounds, coupler clash and brake squeal would be good starting points.
I just put one of these on my layout. It is a very nice unit but as pointed out in the comments the horn is lame and so far no amount of tinkering with CV's makes it any better. The decoder has a limited function equalizer and reverb function that doesn't do much as far as my antique ears can tell. I don't know if a speaker upgrade would help that much but I guess it is a possibility. For the money it is still not bad.
I like it sounds and looks good Athearn is awesome you always get the best.
How long till Athearn comes out with the KCS version as long-ago announced?
Once again an excellent video by the MR staff-Keep up the good work in keeping us informed.
NICE SETUP..A BIT OF WEATHERING WOULD BE A NICE TOUCH…
Boy, is that horn lame. Otherwise it doesn't sound that bad. Although the prime mover sound doesn't start to ramp up until the unit is moving.