I am interested in looking at the GRS psu but their website has been down for quite some time.
http://www.grssystems.com/Although the Atomic PSU seems like a good unit, the price is just unrealistic for today's analog recording scenario.
I own an SSL 4040 E/G and a Neve 81 series, which I have been servicing for many clients for nearly 20 years, so I can definitely benefit from having a newer PSU that I know will improve the entire system and will allow me to power up/power down my board without any problems, thus keeping me away from the tech bench. The problem is that with the price tag of $5K plus for one PSU, there is a chance that we will never be able to recoup the investment as it appears that the demand for analog mixing/tracking will be non-existent in a very short period of time, at least in the NY market where my studio is based at.
Selling the consoles with the new PSU will probably add nothing to the sale value, so I think that it would be less expensive to rebuild the existing units and whenever possible buy a spare or two of the old ones, as I have with the neve, and keep them around in case of emergency.
In my opinion, New PSU's will need to be at least in the $2K range or less with all the bells and whistles in order to motivate existing console owners to invest, in return, sales numbers will drive up and the cost per unit will go down. Popularity of the company will drive up as well, thus creating an opportunity for newer product development.
In reality, before developing such systems, one should need to do a market research and see how many owners would be willing to invest money on a new PSU that will be seating in a closet doing pretty much the same as the original system and at what price point.
I developed all kinds of needed components for Neve 81/82 series such as a new cpu card for the routing system, which was outdated and could no longer be repaired. I sold quite a few of those at a price that I thought was a bit high, but people had no choice. It was either my card or the console would not be useful in tracking mode, so I was clearly alone. Did I make my money back? nah, but I made the re-sale value of the actual consoles go up, as I bought a bunch of them for almost nothing and was able to refurbish and sell them quick and easy, so my profit at the end was at the resale of the actual console and not on the components that I created.
I really wish that Atomic or other companies could figure out a way to bring their prices down to at least half of what they are at right now and if that happens, I will definitely be a client for both consoles as I no longer wish to be a tech, until then I will have to make sure that my psu's run smoothly.
My $002