Help with Quad Sub

I have just connected the Quad sub from an old Quad Lites 5.1 system, to a Q Media 4 sound-bar.   I have no manual so  I'm  unsure of what settings to involve.  Can anyone help regarding the settings.  The Quad remote has the following buttons.

Volume        Self explanatory

Standby       =

Low pass filters        = Off   35- 45- 55- 65- 75- 85

Phase 180 button    0 button

Presets  1 2 3 4

Thanks for any assistance.