@gregjacob I have never owned a primaluna but have heard a couple. I wasn't impressed, I concluded it was the amp, but I have to be honest that it was other peoples' systems. for a true test, it would be much better to drop one into my system so I would be able to control the other variables.
the ZMA is a point to point wired vs printed circuit board for the primaluna. Primaluna. The PL is a bit of a swiss army knife with all the features, but that in my opinion degrades the signal. The ZMA's strong point's are the huge power supply and simple signal path. I am a big fan but I don't need so much power and am fixated on the simple SETs now. Yes, i will be listing it for sale soon but I am not offering it for sale yet. I know there are a lot of Primaluna owners out there. This is my opinion only. I'm just a guy and my opinion is worth what you pay for it so don't be offended.
the custom amp is a 6 figure amp with hand wound transformers and some amazing features. I am very lucky to be able to purchase it. I have heard the layout version of it and it is already the best amp I've ever heard.
Jerry