I noticed that Electric Railroad (Railsounds Aftermarket) now makes an FM diesel sound.
I'm thinking of purchasing it, but I'm also considering the Dallee 3-rail AC system, because they can actually match the proper horn sound for the proper engine (I have a CNJ Trainmaster, and I also have a Copy of Jersey Central Diesels that gives technical information about what horns each type of CNJ engine had.)
So my question is this: How does the Sound quality compare between the Dallee and Railsounds units?