WTF with $2500 retail price?
Don't doubt they are top notch, I have Statement MKII pre, I'd have the Frankensteins if not for rather serendipitous find of very special bespoke 300B monoblocks, once in a lifetime find.
And I mentioned this in previous threads, one is not hearing any DHT based component at nearly their potential without top notch tubes. These circuits relatively elemental, the tube provides for large measure of their sound.