If your amp can take a relatively high out put impedence (3500 ohms) and you want a sound that is on the warm side of neutral but retains resolution and high frequency (consistent with, or exceeding components in its price range) don't overlook the Primaluna 3. I can assure you that it will offer a real sonic alternative to the ARC SP9 or the Rogue.
Used Tube Preamp Suggestions
Looking for suggestions on a used ( because the budget is under 1K, and preferably in the 600-800 range ) tube preamp to match with my new tube amp. I don't use a phono stage, just a line, so a strong phono stage would only be good for possible re-sale. I'm a little concerned about buying something "vintage" and not getting the time in down the road. I'm leaning towards an Audio Research SP9 mkII or a Rogue Perseus which I read a review it was noisy. Any help would be appreciated. Thanks Rich