From your post, I presume that you want to buy another tube preamp. If so, then you need to add the appropriate model of Conrad-Johnson preamp to your list.
If you are willing to consider some other preamps that are a bit less well known, you should also include the Hovland 100, which has gotten some outstanding critical reviews.
If you are willing to consider some other preamps that are a bit less well known, you should also include the Hovland 100, which has gotten some outstanding critical reviews.