Best preamp for atma sphere m60 under $3000 used?


I considered the mp3 and the mp1, one is too expensive the other I will always wonder if I can do better. What preamp will bring me over the top?
I make my purchases very carefully and rarely sell anything, the m60 will not be going anywhere, and I would like to choose a preamp that I can do the same, hold onto for a long long time.
It needs to be balanced and with tubes. Also from a company that has a good reputation. I would welcome a remote too.
pedrillo
I have not heard the Atma pre-amps, but I owned a BAT VK-3i. Unless the 3iX is 2 or 3 orders of magnitude better than the 3i, I can't believe it is playing in the same league. The 3i is IMO, the best balanced unit available for anywheres near the price, but it was easily bettered by First Sound and Joule (single-ended), and VAC Ren (balanced).
 
I like to make lasting purchases ... Or should I wait and save up for the mp1 ...

I say save up for the MP-1 and keep an eye out for a used one.
 
Darn, I was hoping the cary would be highly recommended. The cary is the least expensive of the bunch.
Just out of curiousity can anyone predict what the sim will sound like when paired with the m60's?
As of now it is the best pre I have ever had, but it is the only high end one I have owned. Prior to this I had an onkyo p304 and a nakamichi.
Thanks for the help :~)
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Reason I ask, is one option is to get an mp3 for the time being, but I'ld rather forego the buying and selling of a temporary preamp while waiting for the mp1 to show up at my price point and when the funds are there.
Also thank you all for the advice!