A bit of information that you will learn in time. Everyone copies circuits. If you look in the RCA Tube manual you will see many circuit published for tube amps.
I also know that the same exist for solid state designs. There is truly aren't any new evolunationary designs that are different from 30 years and longer. The difference is that parts are much better today than it was back in the day (many years ago). That contributes mostly to getting a quieter background, and other audiophile improvements. Noise is reduced to much lower levels. That along with circuit improvements to accomodate the changes in parts and with improved power supplies is what has kept audio alive for many years as it evolved.
A lot of gear from over the big pond simply copies the circuit from a book and then markets the gear in a great chassis and sells it for mega bucks prices.
Understand, that not all manufactures of gear from across the big pond do this. But some don't put the care in power supplies as they should. Some actually build excellent power supplies and take care in building it's gear and the way it sounds. That's why I will not buy gear from across the big pond unless it has a U.S.distributor.
New on the other hand did what many have done for years They took a circuit, gave it a very good power supply and dressed it up with a great Chassis. Regardless whose circuit it was it was and is a great design. Mitch Friedman found excellent designers to assist him with his designs as well as make improvements to his designs. This happens all the time. It's a shame NEW is gone but their products were legit, well made and sounded very good.
So don't think for a moment that it is BAD KARMA it was
poor managent of a company that sent it to it's early grave.
I have never owned any of their products but I do have a designer friend that did some work for NEW in it's start up and beyond before they folded.