Setting HPF when using a sub

CPL

Here is my setup -

Peavey PV14 Mixer
Driverack PA+
QSC GX5
MAINS - Carvin LM15 (from DRPA+ Hi)
MONITORS - Peavey SP12M (from DRPA+ Mid)
SUB - Yamaha DSR118W powered (direct from mixer)

I run vocals and keyboards (and guitars if we are outdoors) through the mains. I run only kick and bass in the sub.

Prior to getting the sub I had the following HPF settings -

MAINS (DRPA+ Hi) - 55hz BW18
MONITORS (DRPA+ Mid) - 60hz BW18

- Now that I have the sub should I be setting a higher frequency for the HPF?

- If so, what should it be set at? This is from the DSR118W manual -

Frequency Range (-10dB) - 40Hz — 130Hz
Frequency Response (-3dB) -50Hz — 110Hz

Thanks!

Gadget

Check out this topic and see if you don't think it would be a good way to go.
viewtopic.php?f=60&t=2228