PA300 Problem?

Newton15

Member
Oct 3, 2010
41
Michigan, USA
Hi All,

I have a new production PA300 200 watt model that I have installed in my 2017 GMC Sierra that is married to a federal signal TS-200 speaker behind the grill. I have noticed recently that when operating in wail, the tone seems to be waiviering. It doesn’t ever stop or cut out completely but acts like it wants too. The siren operates normally in yelp, hi-lo and air horn. The ground is direct to the ground block off of the battery. I used all good connectors when installed. Before I tear my console apart and start checking everything, has anyone else had this happen? I am wondering if it something inside the box since the other tones function fine?
Thanks in advance.
Ryne
 

Newton15

Member
Oct 3, 2010
41
Michigan, USA
Update: I put the truck in the shop and went through all connections in my system. All seem to be fine, I was not able to reproduce the issue. I am suspecting it is something inside the control box at this point.
 

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