The new high current Gieseler Kraftwerk PSU rated at 12V, 4A powers a SOtM SMS-200 Ultra driving a Gieseler Groß DAC. According to Clay, it has a new lower noise regulator and a massive 26,000 uf main filter cap; more design details here.
The new 4A PSU on the Ultra improved the resolution of the music. Initially, it came across as slightly louder (incorrect, checked with a sound meter) but this was due to individual instruments being more distinct. I suspect that the higher curren