Running my Avic-Z110BT to two Rockford Fosgate Punch 150HDs amplifiers.  One amplifier is going to run my mids and highs and the one dedicated to my sub.

 

The AVIC-Z110BT has 3 RCA outputs- 1 set for front, 1 set for rear, 1 set for sub.  If I use 2 sets of RCA cables to deliver audio signal (front and sub RCA outputs) to the amps can I use the HPF (high pass filter) audio setting found in the Settings Menu> AV Sound Settings to regulate the audio signal going to the mids and highs amplifier?

 

Unsure if the HPF is speaker outputs or RCA outputs.

 

Thanks for your help in advance.