I agree with all that is being said here except that I don't think 40 minutes is excessive. I did note Mike Fremer at the latest Axpona stating that he finds his cartridge needs about 4 sides before it is at full stride.
I think what I experienced was an abnormal difference in the recording quality of a track on an album which was new to me; my subsequent testing today would indicate that my Anna does not need a wam-up period.
My Graaf amps are another story, the GM200 need about 30 to 45 minutes, the Modena (signature version of the original Graaf GM20) can take up to 2.5 hours to be at its complete best.
I did adjust the VTF already as the warming weather audibly necessitated that change. I believe, that was done about 4 weeks ago.
I think what I experienced was an abnormal difference in the recording quality of a track on an album which was new to me; my subsequent testing today would indicate that my Anna does not need a wam-up period.
My Graaf amps are another story, the GM200 need about 30 to 45 minutes, the Modena (signature version of the original Graaf GM20) can take up to 2.5 hours to be at its complete best.
I did adjust the VTF already as the warming weather audibly necessitated that change. I believe, that was done about 4 weeks ago.