Subwoofer level question. When to boost subwoofer output for dips?

[thcdru2k]

For dips, I’d test rather than assume: add a small boost and remeasure multiple nearby positions. If the dip rises cleanly and decay/headroom remain OK, it is partly correctable with EQ. If it barely moves, fix placement/phase/crossover or leave it alone.

 

[dasherzx]

I can't seem to find the info, but what speakers are the OP using?
Does he have to matching subwoofers just next to his mains, extending their lowest frequencies, or are they scattered around the room aiming for maximum overall smoothness?

Accepting the lowest output unit you have, meaning finding the "weakest" link - might be a good starting point, when tuning a system
In my system, the 2 woofers in each main tower, is the lowest output of the entire system. So when adjusting levels, I have to accept that everything else has to be lowered to match the output capabilities of my chosen woofers. So matching the mains with my subwoofers, kinda only require me to lower the output of my subwoofers, once I found the smoothest transition between all bass sources - in my case with MSO, wide overlap and all closed boxes for minimum phase trickery.

late update as im busy recently. im using two kh750 with two kh310s in this setup. subwoofers next to my mains, large gaming desk at 1/3 of the room. anyways ive decided to take the advice of OCA and others and apply just a simple crossover and accept the dips. crossing at 100hz now and with dirac correcting till 150hz. seems okay too. i was able to solve the dips placing the subwoofers to the sides of the desk but i'll have to tackle subwoofer delays and all so...