Do you adjust your subwoofer

Not all recordings seem to have the equivalent bass level.  I mean, what seems right to me, for that material.  So I do change the volume.  It's a db scale on my remote app so within about a  3-5 db range I find seems "right" in 90% of recordings.  Others set and forget.  As far as locating the sub that's a multi-faceted problem.  I find I can locate the sub at around 76hz and above so there's that aspect.  Volume less impacting to location to me/my set up and space.  

I have two REL S/812 subs and they are fine for 90% of the music I play. BUT, every now and then there will be a disc with so much low bass I have no choice but to get out of my chair and turn them down.  REL should really have built a remote control into their equipment.  If you want a perfect example of what I'm talking about, play Herbie Hancock's "Dis Is Da Drum". I don't know what is being used to create the extremely low bass but it gets my subs shaking and hits you in the chest.

I use an SVS 3000 Micro sub in my home theater system.  Using the SVS app, I have set up and saved two settings.  I use one setting for TV listening at low volume and another for listening to music and movies.The low system allows me to get good sound without the bass booming up to bedroom that is right above the home theater/family room.  My spouse is very happy about that.

The SVS 3000 Micro has transformed my modest home theater system.  I have five NHT Super Zero speakers mounted on my walls and the crossover is set at 120Hz.  Using that high crossover and a bit of subwoofer EQ, I get big sound with the tiny acoustic suspension Super Zero's. 

I have a Hsu Research STF-2 which has worked fine for me with the Vandersteen 2ci. I have tune the sub where is seamlessly with the 2ci to a point where is like a house curve response. This usually a boost in the bass region and a downward slope to the high end region where usually around -3 to -6 db below reference. So to answer your question,  you would need to do it once after you figure out the right placement. Find a well recorded music with a full spectrum response.

@flyfish77 

Wow I haven't heard the NHT Super Zero speakers in years!! 90's I think? Back then l had the Paradigm 20's bookshelves with the Paradigm Servo 15 sub Very few people back then had a sub in there system I've heard really good things about the SVS Micro 3000  If you have room you might consider adding another Micro 3000  I have two SVS Ultra 13 subs and I'm in bass heaven