BEST TUBE PREAMP FOR NUFORCE 9 V2 SE ??


i friends im really like to buy good preamp for my nuforce monoblock 9 v2 se (i will upgrade them to v3),but i really like to know what will be the best choice for my nuforce with my devore gibbon nines speakers ?
i live in israel and i cant get all the preamp for listen.
i trust you all for help me decided .
i look for 2000$ max price or less only used.
i have few suggestion i will listed them here i will be glad if you will write yours opnions and classify them for me please :

1.EAR 834L , 2.VTL 5.5 , 3.CONARD JHONSON 16 OR 17 PREMIER OR PV 10 ,4.MANLEY SHRIMP ,5.AUDIORESEARCH LS22 , 6.LEBEN

i m hope to hear alot of response from you and i will decided
thanks alot guy
bolero32
I had a Cary SLP 05 with mine, and it was a little too sterile. I would try a used Atma-Sphere MP-3. I would try to run the amps balanced, for sure. Good luck!
The input impedance on the 9 V2 SE is 45K ohms and the voltage sensitivity is 2.5V (I think). Keep these numbers in mind when shopping for a tube preamp. Since your looking for an active preamp, you should be fine with the Nuforce's 2.5V sensitivity. 45K Ohms input impedance on your amps is around average, but don't get a preamp with too high an output impedance.
If you have the bucks Veloce Platino?
Along the lines of devilboys comment and for your knowledge, I tried a Shindo Aurieges L w my Ref 8s. The Shindo has a pretty high output impedance; the pairing was not optimal.