Question on HU setup for external amp.

Have the JVC KW-NT3HDT HU with a Memphis amp for sub and another for the other speakers (All Memphis). Wondering what I should set up in the HU for use..below aree options I have.

Adjust the subwoofer output level, Low Pass Filter, and High Pass Filter.​

Subwoofer Level: Adjust the subwoofer output level.​

Off, –24dB to +20dB; Initial 0dB

LPF Frequency: Adjust the cut-off frequency of low pass filter. *​

50Hz to 150Hz (in 10 Hz intervals); Initial 100Hz

LPF Slope: Adjust the Q-slope for the low pass filter. *​

–24dB, –18dB, –12dB, –6dB


HPF Frequency: Adjust the cut-off frequency of high pass filter.
Off, 50Hz to 150Hz (in 10 Hz intervals)


HPF Slope: Adjust the Q-slope for the high pass filter.
– Not selectable when <HPF Frequency> is <Off>.
–24dB, –18dB, –12dB, –6dB

What would be basic/ideal setup with what is listed above.​

Thx​

 

Have one for the sub and one for the doors.