Ok_Session_9057

Hi. What is the problem with these old boards in your opinion and What kind of significant advancement have there been? I managed to buy one of these first version attenuators and been using it with LCDuino in my line stage and cannot think anything I don’t like about it. I am just starting to build two more for my electrostatic amp. These seem easier to solder and space is not an issue, since the amp is going to be pretty massive, so I was wondering if there is a good enough reason to get the newer version instead?