Some technical background for those interested in a behind the scenes look: 
Having recently increased (narrowing) the directivity of the mid-range dome speaker drivers by employing the wave-guided DM7600âs I found that there was some detail still lacking at the listening/mixing position so I thought; âWhat if I could narrow the dispersion pattern of the HiVi RT1.3WE Ribbon tweetersâ?
So, as an experiment, I split some pipe insulation and painterâs- taped it on the sides of those tweeters to reduce the copious off-axis sound pollution:
Well, it makes as much positive difference in the dynamics/detail/attack of the whole playback experience as it did having just replaced the DM7500âs (Very Wide Dispersion mids) with the much narrower dispersion DM7600 mid-range domes.
Narrower directivity is a good thing!! It removes almost all of the frequency response destruction of having wide dispersion which causes speaker cabinet-edge diffraction and reduces sound bouncing off of the walls. (That stuff causes frequency cancellations [muddiness] at your ears).
Channel separation is so much better as well. So defined.
Just like wearing headphones with clean/tight/punchy room filling bass . . . 
The power response is excellent and I have had to turn down the SPL as it can make my head /ears hurt with moderate volume levels from 8 feet away with no discernible distortion or noise. (And its only 50WPC into a 6CH amp!). https://www.acoustas.com/
Getting better sounding mixes via clean/powerful room-filling-playback makes me play better at times so I will continue the pursuit of this ear satisfaction-thing . . .
Enjoy your day ahead!!
Steev!
