Metal cabinet speakers


I like the idea of a very strong inert metal cabinet. Besides Magico, Steinheim and T+A.. who else makes metal cabinet speakers?
smodtactical
I did a tour of the YG facility and their process was super impressive, and the speakers did sound great. They CNC all their own parts/drivers/cabinets out of 2" thick aircraft grade aluminum.  No parallel surfaces, double walled cabinet construction. Apparently it takes 120 hours of CNC milling for them to make a single pair of Sonjas.
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@mijostyn, A D'Appoltio Array uses a 3rd order cross-over not a 6dB 1st order cross-over.
I had a set of the Celestine SL600 with the honey comb cabinets and they did some things quite well. but huge power pigs.  had an amazing midrange not so great in the extremes as modern speakers but very musical and engaging if I remember correctly.  but wow needed a lot of power to wake them up