Today we checked this Model 7 off of our bucket list of to-record sirens in Blanchester. It wasn't terribly loud, but it certainly did a good job of covering the central town area. The first two sirens you hear wind up are two Thunderbeams, followed by the 7, and shortly thereafter you can hear a Sentry 10V wind up. The county did not activate today for some reason, so no Vortex or Showa 10V.
https://www.youtube.com/watch?v=IVJyf7QK5LI
https://www.youtube.com/watch?v=97hjUzZTF-8
https://www.youtube.com/watch?v=OhqbS-n5Nho