I am having an interesting discussion with my musician son. He claims anything other than PTP construction, no matter the constructor, provides inferior sound - specifically in pro class studio mixing boards. He claims that the increased cost of a custom PTP board should not be a consideration when upgrading studio equipment even in a digital world. My experience has been the opposite in the energy sector I work. Most if not all the electronic equipment used is PCB stuff. The environment used can only be described as extreme. For example, down hole electronics are design to work in pressures up to 20,000 psi and 400 F. 300 F and 10,000 psi is common. My musician claims that audio is so different that any comparison to my experience is wrong minded. Anyone want to weigh in on the conversation? ..