The K5LA is a five-chime airhorn that was invented by the Nathan Company in the 1990s for Amtrak. Amtrak wanted a horn that would give its trains a more cheerful sound than the P5 did. This recording came from an HO scale Bachmann Charger with a TCS WOWSound decoder. This file fits any Siemens SC-44 or ALC-42 Charger.
Version 2 update: Lowered the build number to ensure backwards-compatability.