I am waiting on my wiring for the amp install, but was wondering if anyone has the same setup as mine and what settings you used on the amp. I have the stock head unit, E2125x amp, Hertz 6.5 speakers. Thanks in advance for your help.

 

Gain Setting Equation use a 1k HZ test tone.
sqrt(125W X 4 ohms) = 22.3 volts AC sqrt(125W X 2 ohms) = 15.8 You need not be exact but error to less gain. You can always set by ear to taste to your favorite beat/song set switch on full.

What is the speaker ohm? This is easier than most think.
http://www.soundsolutionsaudio.com/f...mplifier-gain/

or down and dirty put in fav song crank it up with gains at zero until it distorts back off volume until no distortion. Then with volume up as loud as it can with no distortion turn up gains until you get distortion then back off until not distortion. I have same amp and did use it on on stock head unit and now a sony head unit. but used JM speakers they are 2 ohm. Not sure about them in the market for speakers but not buying nothing until I hear them in person this time.

 

Thanks Sam2010, Hopefully someone has the same setup and can help me with there settings