Subwoofer filter?

Hammer2222

Hello. Does the Dudu7 have a High Pass filter for the subwoofer?
I heard that for example the Teyes cc3 has a 20Hz filter for the subwoofer.
My project vehicle that I am looking at putting a Dudu7 in has a very extensive high end audio system which includes dual 18" subwoofers in a true infinite baffle configuration. It is capable of playing well below 20hz, it was designed to play this low on purpose.
If the Dudu7 has a filter on the subwoofer that cannot be defeated, I will have to look at another source for music playback.
Thanks

Mish1982

Hammer2222 My Dudu 7 can play below 20hz. I know for a fact that it can

Mikescotland

RAWcat on YouTube did the measurements of this DUDU7 headunit.
The unit plays almost flat from 10Hz on low level outputs and optical and usb.
You still need a infrasonic filter on your sub amp as, as you said, you run infinite baffle so you'd exceed Xmax for speakers below 20Hz most likely without it.

DUDU-Meng

Are you referring to this feature?