Viber - btw - the link to the Purifi mods (which I suspect would be similar if not identical) and review of them are on the EVS website -
http://tweakaudio.com/EVS-2/Purifi_amp_mods.html Ric also does mods to IcePower amps, including the Rouge -
http://tweakaudio.com/EVS-2/IceEdge_amp_mods.html I believe when I talked to him last (probably about almost a couple of months back), he had done mods to other IcePower amp brands (e.g. Mivera) to essentially do to them what he did with the EVS 1200.
Everyone's priorities are different when it comes to upgrades. Some may not want to keep an amp or not touch it until the warranty is over. Others may want to upgrade what they perceive to be more important weak links in their system (or in the case of crazy me - systems) whether those are electronics (e.g. preamp, amp, DAC), cables or other tweaks (e.g. footers, fuses).
Everyone has different priorities and budgets (not everyone is named Jay and can do what he does). A case in point is my friend who comes over most Thursday nights. We usually listen to music on the main system. Once in a bit, we'll do a movie or we'll listen to music on a secondary system. I'll also from time to time go over his place to let him hear something. I did that with my Mivera SE amp (which I sold about a month and a half back) and he needed a case with shallow depth for his set-up and he ended up with an Apollon IcePower stereo amp like this one -
https://www.audiosciencereview.com/forum/index.php?threads/apollon-audio-as1200-review-stereo-power-... I've also brought over tweaks and things like USB cables I've had in secondary system. He was blown away last Thursday by the one I have on a tour now (Hapa Audio AerO) which blew away a very nice cable of another brand (which is now in the system with the EVS 1200 going from a small fanless PC to my DAC) and I have one of the cables I auditioned on order.
If I get over to Tweak1's at some point (he is waiting on new speakers), I'm sure there will be additional comments he can offer between the EVS 1200, stock Voyager and modded Voyager. If he still has the stock one in his possession at that point, I can hear that as well. The purpose of threads like this (and that's why I posted here vs. the others) is to give feedback on actual hands on experience with details about the music and components in play. To me it is of no value to listen to someone rant why something is no good based on some theory they believe (and they are free to believe anything) vs. having real experience with a product.