It looks like the new horn design happened back in 2022 with Argos, Indiana being the first one to have the new horn design we all thought it was temporary but it’s not seems like the new horn design is permanent thankfully they kept the T-135 AC/DC horn design untouched
@WV_SIREN_PRODUCTIONS ASC is in fact still making the T-135 AC/DC I saw a couple sitting in their back lot ready to be installed for my county’s new system soon