"The room can totally wreck, or make, a system"

One of the problems is the “Speaker Merry Go Round”. If you don’t address the room’s issues or without having a speaker built specifically for you and your room’s needs basically you’re just purchasing, no matter who the manufacturer is, an “Off The Rack Speaker”, that sure sounds great in their sound chambers, has all the right specs, etc., but probably will only sound so good in your room.
So many people are let down after laying out big bucks for what they thought was the speaker of their dreams once the honeymoon period of new ownership fades and the true critical listening begins, that’s when you begin to hear the speaker’s shortcomings, usually happening after the allotted return window expires… LOL… Really not Funny. 🤦‍♂️ Now you’re stuck trying to unload, usually at a loss, what you thought were your “End Game” Speakers on the various forums or even to TMR and buying another ticket for a ride on the Merry Go Round again. 

The fix is certainly Fixing the Room, Utilizing DSD or both.

Best advice ever… FIGURE THE ROOM OUT AND DETERMINE WHAT NEEDS CORRECTION and now you know how to proceed. 

@fynnegan  I had a similar issue 50hz to 100hz…Applied room treatment, bass traps & absorption panels, only thing that corrected the problem was changing out my speakers to a set of Soundfield Audio MMW-1’s Cardioid Stand mounts with built in active front & Top Firing Subs controlled with DSP. If you don’t know what a Cardioid Speaker is Google it, it’ll certainly apply to your situation.  I opted to have my set built with Beryllium Tweeters and I have to tell you, In the past 5 years I’ve gone through 11 sets of speakers going nuts trying to correct the freq bump in the room. These are number 12 and they’re absolutely amazing and in combination with my room treatments the bass issue has totally been corrected and am finally off the speaker merry go round and finally enjoying my music!

I just got back from the Florida Hifi Expo in Tampa, I gotta tell ya, I seriously felt my set up sounded as good if not better than many of the High End systems I saw. I went specifically to stop by the Soundfield Audio’s room just to thank AJ, the owner of Soundfield Audio, for finally getting my room sounding right… and here’s the kicker, No Lie… His room was prob one of the best sounding rooms at the show and when I told him that he said he’s been hearing that all day. 
So yes DSP at this point may be your only option as it was for me and combine that with a quality speaker custom made for your tastes and room’s needs and I can assure you,  you’ll never look back !