RAAL uses 2 foam blocks to adjust radiation pattern these reduce output slightly. Maybe sim will work. But better to just use a attenuator on ribbon if its to hot near-field. Or replace loudspeaker many ribbon loudspeakers do run tweeters hot since at distance they reduce in level. I use designs with user adjustment so can be used near or normal set ups. Fostex r100t is very good for attenuation.
Tailoring tweeter output
Many companys recommend listening with grill on, like Avalon or Dynaudio. On stereophile measurements, the grill changes direct output from the speaker significantly. I am experimenting with this, any recommendation on specific material. Does the reflected from the padding/grill sound create any issues?
THanks
THanks