StephenNurn
New Member
Hey all, i just recently replaced a Whelen 295slsa1 with a federal signal pa300 series siren. I compared wiring diagrams and made my own directory on paper one which wires would connect to eachother. Im positive the wiring is correct. Once i turned on the siren the speaker started making a low sounding humming or buzzing with the siren off. When the siren is on the volume is very low and there’s interference noise with the siren. The speaker is a federal signal es100 so the sirens are definitely compatible. Its not the siren itself because i swapped with another siren of the same model and same issue. So either its a bad speaker or the wiring is bad. Any advice? Has anyone else experienced this?