Quote Originally Posted by AllenH427 View Post
Mine under the hood rests at 12.94V, my two in the rear rest at 12.82V. Shoot, XS Power's D3100 rests around 13.1-13.2V.

And why are you hating on me for having a loud system?
These voltages are after the battery has been sitting with no load or charge for a number of hours?

There are downsides to having an excessively loud system. Safety appears to be one.