Vintage King in the US now carries them. This makes me happy.
As discussed earlier, even IF the cardioid response is not effective above 250 hz and starts to drop off, the most basic and affordable porous panels at 150 mm will have no problem absorbing most of it. That’s around the area where broadband acoustic treatment gets effective and doesn’t take up several feet.
Which brings me to my question. Since porous acoustic treatment is not considered to be a boundary, I’m curious what gaps between back of speaker and front wall/ side walls will be needed to allow for enough room for the cardioid response to be effective/breathe.
Also, since I will be using subs, I wonder which model has better midbass performance. 934k or 944k