The eq in your midrange and bass is very similar to the eq I'm running. I'm sure with the new head unit you'll get better overall output.
I just got done with another tune in mine. Finally sounding like I want it. Well see how long I keep the factory head unit as well.
input signals from the stock HU... first one being a full range signal from the fronts with a huge bump in high end and low mid range... second being a more high frequency weighted profile from the rear channels, I thought it was interesting... doesn’t appear that the bass rolls off with volume it stayed consistent.
Please let me know if there are questions I’ll do my best to assist, thanks again for tuning in.
Did you turn off the head end unit ASL before these measurements?
Did you set the head end unit treble, mid, and bass to 0 before these measurements?
This is your 2020 4Runner, correct?