Pioneer amp
Front set Large, Sub set "PLUS"
then fine tune the subwoofer's db output in the amp ( around -3, -2 db), then fine tune the volume of the subwoofer...
try try..
TV:Panasonic TH-65GX880H
Amp:Denon AVC-X8500HA
Int Amp:Denon PMA-2500NE
Spk:NHT C3, NHT C LCR, KEF HTS3005
Sub:Velodyne SPL1200 Ultra
BD:Panasonic UB9000 & Sony X800M2
Game:Sony PS5 & Nintendo Switch