2024 CX-5 Turbo Sig Bose - Amp Roll off/EQ question

[Aang]

Hi, I got an LC2i > JL JD500/1 installed on my car.

Installer used the rear speaker signals.

My subwoofer doesn't play the 33hz note in the song "Decaf - White Clouds".

Question: Does anyone know if the roll off of the rear speakers is identical to the Bose sub? I am debating on swapping the LC2i inputs to be from the Bose Sub wires.

 

[N7turbo]

Get a mic and play test tones.

 

[edouble]

Sub signal and front door speakers appear to share the same bass frequencies.

I didn’t measure the rear door speakers.

Pictures are attached are the speaker level signals (electrical).

 

[Aang]

Sub signal and front door speakers appear to share the same bass frequencies.

I didn’t measure the rear door speakers.

Pictures are attached are the speaker level signals (electrical).

Thanks for this. It is greatly appreciated. It does confirm though, that the frequencies impacted are identical.
If this is the literal signal measurements and not speaker output:
Sub vs Front
@50hz +2dB
@40hz +5dB
@31.5hz +5dB
@25hz +6dB

I shall swap to the sub signals for the inputs to my LC2i.