Moving up from the GG1 and GG2 to my new Pacific, which is probably still breaking in at about 50 hrs. On the clock, all I can think is holy crap. I’ve never heard anything like this before. This is a step or two beyond the GG2. I’m not thinking about tube distortion. I’d venture a guess that my old Pass XA30.8 had more 2nd order distortion than the PAC. Super resolved and clean. Impressive micro and macro dynamics. If someone is looking for Tube euphony it’s not here, at least in any traditional way. Where the PAC excels beyond the best SS DACs I’ve heard, is in the dynamics both large and small. Very alive and 3D. That phrase means too many things in audio. Really you just have to hear it.
Lampi Tube maintenance is a non issue. Buy a good set, drop them in, maybe change them 10 years from now. Much is made about rolling here, which is a real thing, if you are looking for something to do. It’s not a requirement.
My suggestion is to sell what you need to, buy a PAC. The rest will follow.