Anyone ever heard of a Nathan K5HLL? It’s being equipped on all the new GE ES44DC, ES44AC, and ES44AH locomotives. After hearing this horn, it sounds a bit like the Shocker horns. Deeper than the K5LA. However the Shockers do have a bit of P3 to them. Here are two vids I found. One is the K5HLL and The Shocker.
I’ve heard of a K5HLL. I believe it has a 1L,1,2,3L,4 bell configuration.
On a side note, I don’t think the shockers sound like any kind of real train horn lol. I like their sound and most average joes think it sounds like a train but it just doesn’t to me.