Given the type of music you listen too, I'd highly reccomend you take a listen to the Harbeth Super 5s and GMA Callistos. I've also been in the market for a pair of monitors for $4k tops and so far these two have outshined many others on female voices. I listen to a lot of Shirley Horn, Etta James, Dianne Schur, Norah Jones, etc.
