Tube Preamp - What to buy?


Looking to take my first venture into the tube world and going with a tube preamp.  My budget is up to $2500 and willing to buy used or new however realize with my budget that used is probably a better path. I would like to have a built-in MM phone stage.  I am use to having a remote and tone controls, so that would be nice however not a necessity.  

For further information my speakers are Revel Performa3 F206 and the current amp(s) is Conrad Johnson SA-250 and I also have a Rotel RB1552.  I many be looking for an amp upgrade in the future, but one thing at a time. 

So far I have been looking at used Audio Research and Conrad Johnson preamps but very open to opinions on brand and model.  Thanks and I look forward to your opinions and experiences.  
speter04
Post removed 
Post removed 
In this price range, or even of you plan to spend two or three times as much money, I recommend Roy Mattram’s Vacuum Tube Audio SP14, which circuit, I believe, forms the basis of the Don Sachs units, referenced, above.
@tvad @millercarbon I need to jump in and provide an alternative viewpoint. I own a Raven Blackhawk 3.1. It is a terrific integrated amp. Not only is it driving my 88dB 4Ohm Magico A3 towers super well. But I also have high level sub cables attached to the Raven binding posts tapping off signal to a pair of REL T/9is. There are plenty of dynamics, detail, imaging, soundstage. Everything we want. This amp has so far made my PrimaLuna Dialogue Premium HP with EL34s sit lonely and disconnected in a corner. My solid state amps are wondering what happened to me. My Pass Labs XP-20 is wondering if she is going to see her photo on Audiogon. There is NOT insufficient power in this amp, unless their listening room is Madison Square Garden! That is absurd. If I turned this thing up to 12 o’clock I would blow my head off!! I think @b_limo needs to check something else in their house and or system. Maybe get the wax out of their ears. But also check the tubes. But this Raven has plenty of power. Last thing I will say is I am glad I got the Blackhawk and not the Osprey. The Osprey would have been overkill to the extreme and a waste of money. My Raven Blackhawk isn’t going anywhere. My PrimaLuna? Well we shall see…
If I turned this thing up to 12 o’clock I would blow my head off!!

I think you just blew some MDS heads up.