Modwright Phono stage power supply ugrade

I recently noted Modwright is offering an upgrade for the power supply of their PH9.0 phono stage. It adds tube rectification to the current supply.

Has anyone gone that path? If so, how did it modify the sound of the already lovely phono stage?

Thanks

mdrone04-02-2024 4:03pm

armstrod Details Discussions Posts This discussion Message User 602 posts 04-02-2024 at 06:22pm Copy Comment URL Report Comment Edit Delete I did it. The difference is not huge, but definitely noticeable, better inner detail and smoother high end without limiting the bass. Surprisingly, it also seems a bit quieter, counterintuitive when you're adding a tube. The best thing is being able to roll the rectifier, which in Dan's amps can tailor the sound. I really like the 5U4GB over the stock 5AR4. My unit started out as a PH 9.0X, so results might be a little if you have the base model.
mdrone OP Details Discussions Posts This discussion Message User 114 posts 04-02-2024 at 07:32pm Copy Comment URL Report Comment Edit Delete Great, thanks for the information. I have the 9.0 x as well. Have you upgraded the umbilicus cable as well?
ericsch Details Discussions Posts This discussion Message User 751 posts 04-03-2024 at 03:17am Copy Comment URL Report Comment Edit Delete I also did it. I only had the preamp for a month before I did the upgrade, so I really can't comment on changes in the sound. I upgraded the umbilical to a Triode Wire Labs cable. I think MW was recommending WyWires, but they were too pricey for me.