I just bought the newest BAT preamp VK 52se and could not be happier. I am using it with a new Krell EVO 402 amp and it is dead quiet. I could write all day about the imaging, dynamics, detail, etc. but in truth the thing just makes all the music sound more like music. It ain't the prettiest thing but it sure sounds gorgeous. My previous pre was the Pass x-1 and this is a wonderful upgrade.
