I eventually moved on to better tube preamp offerings, of which there have been many...
Can you please post a list @sundaycomix ?
I have an AI purchased in ‘98. I have been thinking about upgrading, but I do not know what I would upgrade too, as it seems like it is very nice.
The main thing that I dislike is that it is 120v, and it is in Australia now, so I use a transformer. The upgrade cost to go to a 230v power supply was $450, but then I think that they wanted me to send the unit in… I honestly cannot recall exactly… it was like ~6 months ago. And secondly it takes up a bit of shelf space.
But it sounds so good, that I cannot imagine what I would replace it with.