Ditching Lumin T2 - Lumin U1 Mini or Bluesound Node 2i

@big_greg  I have 2 SVS SB16s and 2 SVS SB2000s.  Love the 4 subs but the sb2000s are really for experimental use and fun. Those will either be sold or go to a second room soon.

But yes, I can tweak the subs in the app. It's just more manual and I like having the peace of mind that ARC gives me.  When I tune the subs, it's normally on a small selection of music.  Tuning with a much larger sample size of music takes much more time and I end up going back n forth second guessing.

Also, it's a PITA having to switch subs in the app, change setting, then go back to the other sub to tweak it too.. I wish there was a faster/better way to tweak in the SVS app where all subs show up on the volume, phase, polarity, and xover tabs within the app.

@dtximages If you use all 4 subs, you're going to have a lot less issues with bass management, basically set your levels and crossover points, make sure nothing is out of phase, and you should have great bass.  That's probably over-simplifying a little, it takes some time spent listening and tweaking a bit to get things exactly where you want them.

I have two SB13 Ultras and two Rythmik F25s.  I don't even have an app, just the plate amplifier controls!

@big_greg yeah it's definitely smoother with 4 but ensuring they're all in phase is the tough part....  Because, you're never sure which subs are out of phase.. Normally one or two are in phase with the speakers and slightly out of phase with the other subs etc... Getting EVERYTHING in phase is very difficult.

Continuation of my previous post....

so you end up saying "ok i think that probably sounds best."  Listen to the next song, nope!  Something's wrong.. Tweak adjust...  Find the new perfect setting just question it constantly.  

The thing I've found with 4 subs there are less problems, but the existing problems at 4x worse.