Hi
Late, very, very late to the party...
I have been satisfied for many years about my Audio system. Cheap, immensely satisfying and a middle finger to my past audiophile life, when I believed that price was correlated to performance... This Atmos Multi-Channel HT & music system, cost for true 20 Hz to 20 kHz (full-range), >106 dB, at the MLP, level of performance around $5000, HT, BenQ HT 20250A projector , miniSAP 2x4 included ... Room is concrete 3.5 x 5 x 2.8 meters ... Dedicated.
I use Audyssey Mult-EQX with good results. Recently had to repaint the walls followed by a blown lamp. surround speakers not installed on the walls ... decided to just run the system on 2-channel, MSO-ed subwoofers ... fired Audyssey Mul-EQX on, 2-channel... Good sound as per usual but ,,,
something was missing..
Measured and re-measured, played around with "house" curve ... often good , still no cigar ...
On a whim decided to try OCA Evo A-1 Express.
Blown away!
WTF!?
Went back and forth between Mult-EQX and OCA EVO A1 ... Granted, I did not level match, stiil, the clear the winner to my ears and preferences ? OCA EVo A1Express...
That version is easier than it sounds. We are all too used to fancy GUI and touch this and that, and .. graphics...
I just used the Audyssey AMCH microphone, the one that comes with Denon Receivers; I measured at the MLP and around it a small sphere ,approximately the size of a human face and ...
WTF!! ?
....
I am a convert.
I will go full A1 Evo Acoustica (or latest iteration) , once I return to full Atmos HT surround, I might in the meantime acquire a larger bigger, better subwoofer... As for the other speakers? I see (hear

) no need to change them.. I no longer can even retain a shred of long lost audiophiles creds ... with my main speakers being the cheap JBL LSR 308 .. and my 2 subs, the unglamorous and cheap Dayton Audio Sub 1500 ...
Just one complication that could be related to my own network. I had to enter manually the IP address of my receiver, it did not find it automatically
@OCA incoming PM ...
And to anyone with compatible Denon or Marantz AVR.. Try the OCA Evo1 Express.. You will be very surprised... and it is easy... literally 10 minutes from start to finish and good to sublime sound..