You could also call Athearn and ask them why they switched from MRC to Soundtraxx.
As noted before a quick search for MRC on the forums will answer your question quickly.
Springfield PA
My experience over the years installing them for other club members has been only one out of 10 has not burned up within 10-15 minutes of use. The good one had to be returned to MRC for repair but can't be installed because it would melt a plastic locomotive shell.
The last time I have touched one was about five years ago, so I don't know if they have improved.
Some have good luck with them, many don't. I'm in the second group.
Dr. Frankendiesel aka Scott Running BearSpace Mouse for president!15 year veteran fire fighterCollector of Apple //e'sRunning Bear EnterprisesHistory Channel Club life member.beatus homo qui invenit sapientiam
Do a quick search on this forum on MRC DCC Decoders and you will find plenty of first hand accounts to back up "what you've heard".
Hey, I've heard that MRC decoders are cheesy garbage. Is this true? Whats your feedback??