What type of K5LA's are this?

So before Transport Canada mandated the use of K5CA-LS horns on all passenger trains, GO Transit's fleet of F59PH's had this K5LA equipped. https://www.youtube.com/watch?v=WcyHO63jbVc I know that similar horns are found on other F59 units, but what type of K5LA is it? And on the same lines what type of K5LA is this? https://www.youtube.com/watch?v=ab8TrfIn0GQ This was equipped on the MP40PH-3Cs before the K5CA-LS. Does anyone know what type of K5LA's these are?

This might be helpful.

http://atsf.railfan.net/airhorns/index.html

There are audio samples and notes to "play" your own horns on a keyboard if you want to try that.

None of those sound exactly like the ones I put links of. MP40PHs kind of had the horns a lot of modern NJ Transit K5LAs.

The new ones aren't quite the same as I've noticed too.

I've actually played some of the horns on my piano, although in piano sound and not horns.