@pindac Funny you brought back this thread.
In the beginning of Feb. I took ownership of the Aero DAC. It came with GE 12sn7s NOS. I had the Wiim Ultra as my streamer which has REW/EQ & after a few days I did a sweep to get the Aero to jive. Prio delivery of the DAC I purchased a set of Global Es. Having them in my Pre since 2022 & still lovin them. The GE were dialed in to my liking, so I left them in a week. The LinLai Global Es were sitting on the shelf next to my new DAC & were calling me to give them a chance to flex their muscles (LOL) I swapped out the GEs & gave them a few days to warm up. With no REW, they had that LINLAI sound that I love. After a few days later I did the REW sweep on the Wiim. The GEs went into the stash box.
Last week I took ownership of an Innuos Pulsar (used). Not crazy about the house sound of the Pulsar with the Aero/LINLAI tubes, I started a week of rolling to get everything to jive. After many rolls with NOS tubes, I settled for my K/R chrome tops. After a few hrs, I noticed my foot was tappin with my new toys! The Globals will have to stay in my stash if I ever have a tube failure in my Pre.
I've been criticized from a member here on another thread (audiogon) on swapping tubes. I guess he has solid state equipment with tone controls & can't feel the LOVE of tube swapping.
Happy listening! Dan