@falconquest I ran across Adelaide speakers recently and am interested in the valve series V1093AQTL.
I have these. They will not be for sale or replaced, ever. Note that they are measured to be down *2*dB at 26Hz.
While I can’t test them, I can verify that the reproduction of very low frequencies are not a limiting factor in any listening experience. That is an understatement.
I cannot speak for Edward of Aust Speakers, but the OP did say that he serves only the Australian market at this time where he is well known in the community - understand that they are pretty much individually handcrafted by him.