smallspy
Senior Member
The issue is more that TC have mandated that all passenger trains have 2 different horn outputs. The "regular" is tuned to about 95db, with an "emergency" tuned to about 110db.What are the differences between the horns? On YouTube theg both sound virtually the same
How they do this is totally up to the individual railways - most have set up a second horn control circuit and second set of horns, but GO has decided to modify their horns with a dual manifold so that only 3 bells operate in one mode, and 2 in the other.
Dan