Don't know if this counts, but the worst sirens I have heard to date are the 2001-130s in Boys Town, NE with dying batteries. They stand out in an ambiance from a distance.
Siren Enthusiast from eastern Nebraska.
Proud owner of a 2000 Dodge Dakota Sport and a Darley STH-10 Housing
Not my video (obviously) but this Thunderbolt https://youtu.be/cHzfk2QXoz8?t=135 Sadly, we will probably never know where this video was taken, nor the fate of that siren
Proud owner of a Fedelcode Mach. 3 (dual rotor), Model 2, 3 A’s, 2 D’s, J, 76A, Interstate Machines F, Sparton 35, & Darley C987 >>> Track Forward >>> 25, engineer, and has an affinity for old sirens!