Why I'm not adding a sub to my 2-way monitors for music

I just added an SVS Micro 3000 to my Harbeth M30.1 based system.  Its certainly filling in space I knew I was missing.  My listening area is the right side of a 27 x 13 room and is pretty well damped.  

I can see how setting up a sub could be a PIA.  The SVS app on my android phone allows for tweaking in almost real time.  For my purposes I set the sub to "kick in" at 51hz and the volume setting at -28.  Most of the other settings I've left alone for now.  

I'd love to find an android app that can help with room measurements from my sitting position.  Any of you guys (or gal) know of an app that might be suitable?  

"I guess you’re not listening to Alan Walker at concert level..;)"

Nah, I'm more of a Skrillex kinda guy.  

Quick update on my addition of an SVS Micro 3000 to my M30.1 system. 

I speak for myself in my living room with my equipment.  LR is maybe 17 x 13 and I have the Harbeth's about 24" from the back wall, with the sub in between the speakers, closer to the right speaker but in the same plane as both.   I think I mentioned before that I use an Innuous Zen Mk3 streaming qobuz into an MHDT Orchid DAC into a Pass INT-25 integrated which feeds the speakers and the sub.  The sub is connected to the speaker outputs of the Pass by the use of a speaker to line level attenuator.  Kent English from Pass helped with this solution (so did SVS tech support).  I would rather have used lower level line outputs but that option was not available.  

It integrates just fine :-).  I played with some of the settings (volume, low pass filter, parametric EQ mainly) and came up with what I found works for me.  Easy to hear a very positive difference in "palpability" of my music (mainly acoustic, old rock, jazz).  The sub makes for a more "complete" performance.  Depth. Bigger soundstage. 

It's a fine addition to my system. I like it a lot and it was not very challenging to do by ear.  

I didn't do much research.  I had been thinking about adding a sub for a while when I happened upon Herb Reichert Stereophile review of the SVS Micro 3000 w/ M30.2's.  It just seemed to be a good match so I didn't look much further.  I did consider the KEF KC62 for a moment (I think that's the model, their small sub) but it was almost double the price.  

A quick update on my experience with SVS Micro 300 and Harbeth m30.1.

A beautiful pairing. Like they’re made for each other. The sub simply fills in the bottom range of most music. The SVS phone app makes all the difference; I would not consider a sub without a remote app now. I find myself changing volume by recording; the sub extends the range if there’s anything "down there". Could be subtle or dramatic - my choice based upon recording. But the extension is always appreciated. Makes the Harbeths into a full range setup. The app gives me almost real time control of volume, low pass filter, and other settings.

The sub itself seems fast and I notice no timing issues. Integration was not brain surgery either. Just not hard with the app and some basic knowledge.

If you’re on the fence, just do it. My guess is you’ll be very happy.