This horn has been ruining Canadian passenger trains, it is called the Nathan K5CA-LS. This horn was mandated in 2008 by Transport Canada for all passenger trains, tourist trains and the Rocky Mountaineer are excluded. This horn is designed to be a dual mode horn, in which in normal mode it plays only 3 of the bells, and in emergency mode it plays all 5 bells. The problem? This horn sounds absolutely awful! In normal mode, the horn sounds extremely dull and flat, and when in emergency mode, it sounds extremely bad and discordant. I would be fine with this horn if it were not for the fact that it was mandated for all Canadian passenger trains. Even some American commuter agencies have started using this horn. I just had to rant about this horn because it really is a terrible horn.
Here is a sample of it being played in normal mode
https://www.youtube.com/watch?v=G4bSaTKjj_Q&ab_channel=4K&HDTrainVideos!!!
And here is a sample of it being played in emergency mode.
https://www.youtube.com/watch?v=1MxIOKrJ6R0&ab_channel=CP5499
Here is a sample of it being played in normal mode
https://www.youtube.com/watch?v=G4bSaTKjj_Q&ab_channel=4K&HDTrainVideos!!!
And here is a sample of it being played in emergency mode.
https://www.youtube.com/watch?v=1MxIOKrJ6R0&ab_channel=CP5499