What are the more subtle sounding tube preamps?


I mean "subtle" as in relatively less tube saturation or color than your average tube-pre. Common sense tells me less tubes as in a single dual-triode, but in reality that may not be the case. I currently have my eye on a CJ Classic. Not sure if that will fit the bill.  Any suggestions welcome.
robertsong
I own CJ ET5 wonderful not to tubed but very musical and open sounding.I have had many tube preamps over the years such as Arc SP8,SP15,Throess etc the CJ is very accurate and not overly tubby.Good luck
With the Cary suggestion you'll get rollable sound depending oh the 6 x6sn7s you chose.  The circuit will not defeat your efforts like an ARC will.  Atmasphere is also making a simple 6SN7 pre, He would work with you on sound.