: If Dual Zone is enabled, subwoofer controls and filters are often disabled. Set Dual Zone to "OFF" in the Zone Control menu.
: Look for [Speaker Select] or [Speaker Setup] . Configure Subwoofer : How to aktive Subwoofer Control on KENWOOD car RECEIVER
: Once enabled, you can find "SUB-W LEVEL" in the same menu to adjust the output from -15 to +15. Steps for Touchscreen Receivers (DDX, DMX, DNN models) : If Dual Zone is enabled, subwoofer controls