While that helps it does not tell me how much it puts out at 13.8 volts
no one can give you an exact measurement man. Cuz no one has your exact install,,,,plus it will go up or down with voltage fluctuation and box rise. An approximation is the best your gonna get without buying one and clamping it yourself.
Couldn't have said it better myself lol
That and .6 ish volts difference is minimal and probably won't even be noticed. =)
So I shouldn't worry then?
No. 1400 is a good rough estimate and I'm pretty sure the numbers they post are rated at 14.4 volts. For instance, if you look through some of their amps, they actually list 14.4v next to the rated RMS.
http://www.skaraudio.com/index.php/productscatalog/amplifiers/item/sk-12001.html?category_id=6