Hey guys, hopefully someone here can relate or offer some advice on what may be the issue. Several months ago I had installed in my personal vehicle a Whelen HHS2200 Siren system. Up until now, the system had been functioning without issue. Currently when activating the siren, the sound is considerably diminished and becomes almost inaudible at the climax of certain siren tones. Currently, the system is hooked up to a Whelen SA315P 100 watt speaker.
