Originally Posted by AustinJerry
He is talking about the “sub distance tweak”. Delays for the mains in the AVR are set by room correction and should not be altered. What room correction doesn’t do is align the combined sub signal with the mains. A symptom of this misalignment is unevenness in the response in the neighborhood of the crossover. The typical approach to fix this is the “sub distance tweak”, in which the combined sub distance in the AVR (or in the MiniDSP) is adjusted up or down in small increments (1 ft at a time), while re-measuring subs+mains after each adjustment. This tweak can dramatically affect, or improve, the flatness of the response around the crossover. You have nothing to lose by trying this fix. Make sure you apply any distance tweak to all subs by the same amount.
For now I have only one SUB, waiting for the speaker and cabinet delivery next week.
However, today I made a new Sub calibration with a different filter on the crossover and the dip seems gone. I will take your suggestion for the multi sub setup
Video: LG OLED 55 B7v | Calibration: i1D3 OEM, Calman Enthusiast.
Audio: Yamaha RX-V585, Polk s15e, Polk s10e, Polk s35ce, Atmos Dynavoice Magix FX-4, Sub DIY Dayton RSS210HF Ported | Calibration: MiniDSP, UMIK-1, REW