Which horn? (matching a decoder to a loco)

[ICG/SOU]

I've got a couple of Tsunami FDL16s to put in my Athearn AC4400s and Dash 9s, but am a little clueless on which horn to use.

NS9970 Dash 9 with 5 chime
SP8165 Dash 9 with 3 chime
CSX9039 Dash 9 with 5 chime
BNSF5621 AC4400 with 3 chime
UP5817 and UP6200 AC4400 with 3 chime

If anyone can help, I'd greatly appreciate it. Thanks.

 

[UP2CSX]

I'm not much of a horn expert but about the only horns made today are Nathan/Airchime and Leslie. Since Leslie hasn't sold any horns I know of in the last 10 years or so, I'd guess all the horns are Nathan.

 

[ICG/SOU]

Thanks, Jim.

 

[ICG/SOU]

After doing some looking around on the internet, I found this link:

Five Chime Consultants Airhorn Guide

and found it helpful.