You've received a number of recommendations for worthy products, I'll add one more. If you like a very quiet, neutral, and extremely transparent preamp, the Italian Aloia PST 11.01 can be found for substantial markdowns on the used market. It lists for around $4000 and can be had used for 1k to 1.5k. It's build quality is superb, like a fine swiss watch. Martin Dewulf reviewed it in "Bound for Sound" and found it a little lean for his tastes in his system, HiFi Guide (Italian audio mag) called it "a window into the state of the art." I've been very impressed with mine, a great bargain. None of my partnered components are of a lean and treble emphasizing nature, I don't find the Aloia lean in the least. I also enjoy it's remote volume and switching capability.