Originally Posted by Eskimo1
There's clearly some kind of EQ being applied to the 2012+ Navigation head units.. Has anyone found where to turn all that crap off? There's a bump in the 100-200hz range that's making the subs unusable because of the "boom"
They have an adjustable 7 bands EQ. You can turn it to flat (off). The problem is the sound processor. It just not sending out the correct signal frequency so that's why you're getting the weird boom in some range. Best thing to do is get a dedicated DSP, aftermarket HU with true Flat EQ, or an amplifier with built in DSP (only one I know of is JBL-MS-A1004).