Digital Room Correction For Speakers

Sorry, the only one I’ve played with is the one in Roon and honestly these last speakers have been easy to place. 

DEQX will allow you to do speaker and room equalization.  It can be used for bi or triamping as well.
www.deqx.com

I recently used the services of home audio fidelity in the Netherlands to provide room correction filters that I applied in Roon with excellent results. Read the review below.

It cost me about $100 for the Dayton microphone and $200 for Thierry’s services. So for $300 all up I was able to get a massive improvement. 

https://www.hifi-advice.com/blog/review/digital-reviews/audio-software-reviews/home-audio-fidelity-loudspeakers-room-digital-correction-services/

I tried DSpeaker, ARC/Paradigm PBK, a JBL Synthesis EQ and Audyssey to no avail. Of those, ARC was the best, but it still messes with areas I don't want it to mess with. 

I have opted for a Mini DSP with an Earthworks Mic to measure from the listening position. I will start first by saying you’ll have room nodes no matter what software you use or physical traps you have. They can mitigate it slightly but the software needs ‘tools’ to assist it and those are other speakers that can offset the waves building up in the room. . . I have four subs and run my speakers at full range to correct my room issues.

You do the measurements in Room EQ Wizard and process the results in Multi Sub Optimizer both free and powerful (please donate to the cause). It seems daunting at first but if you follow a tutorial on MSO and use your data it is fairly easy. The mic needs an interface to the Mini DSP and they make one that will work ok if you use a low cost USB Mic. The Earthworks needs a power source and so I have a audio interface with two channels, one to be used as a loopback timing reference and one as a balanced connection to the mic with level adjustments on it. The USB then interfaces with the computer as a USB Mic would.

Anyway you can enter up to 12 biquad filters for each channel in the Mini DSP which is impressive and extremely powerful. You will be blown away by the accuracy and how clean the sound and image become after going through this excercise. I’m happy to give some tips if you want to dive in, it isn’t without a cost: I have almost as much invested in my subs as my main speakers (I don’t think this is totally necessary but good subs are a must), space considerations, and added complexity to the system.