I have about 16 MRC AD322 DCC decoders, they are Diesel sound files, cannot be changed.
These are not great decoders, but the price is right, only costs you the cost of shipping by USPS flat rate box.
Link to information:
https://elmassian.com/index.php/dcc/specific-manufacturers/mrc-equipment/mrc-ad322
No support (from me or elsewhere), they work, they occasionally quit, but good starter unit, put in an eggliner, etc.
First come first served… EMAIL me, not PM (hint, my email address is in my signature)
Would like to give several each to people who can use them, as opposed to sending all out to one person.
Greg