Elk M1 Siren

[BraveSirRobbin]

You are reading to much into it.
 
I stated:
 

A quick test would be to just run one at a time and see if the sound changes.

 
not knowing the siren specifics (given just a max power rating and going off of pure DC power ratings).  This would have quickly proven if they were drawing to much current.
 
As Work2Play stated after my post:
 

Well I think he had the wrong output type as well - speaker instead of voltage.

 
which is most likely the case.
 
What got me worried (again not knowing the siren 'specifics') was when you stated:
 

The sirens draw 7000 mA each,

 
as then the OP would surely have a problem!

 

[Del91574]

Not following your train of thought, since your power calculation and where and how you calculated the numbers was incorrect, but whatever.
 
If the OP was drawing too much current, they'd either kick off the PTC (no siren at all) or start pulling from the battery (as the majority of panels do, they can't handle the current). If he had a speaker connected to the output and set for voltage, he'd kick the PTC off.

Look at one of the questions I asked about programming.....even if the unit is programmed wrong, the AC signal of the driver will still fire a siren, no matter what the attached load really, so that isn't a valid test to consider for overload, only if something is working or not.