Thanks, I know Satorique, but it's based on a MW16, not 19 
And with. time I am more and more inclined to wait a bit a build a three way Satori with 23-24 woofer (ported). I do not have enough place for sealed SB29.
Good to know, thanks. I never went forward with this. I ended up building Troels SBA-761 instead. I did recently rekindle my interest in the AMTPRO4 though. I sent one to Troy (Joseph) Crowe along with an AMT2 to see if he was interested in designing waveguides for them. I’m not so sure this will result in anything.