phono preamp for DKVS1 MK11

I would like to hear from other DK owners about which phono
preamp. works well with the DK.
MY SET UP. Linn LP12 Lingo Ittock Dyn 10x5 MC
DK VS1 JD100 CDP. JM Labs 905 electra's
Virtual Dynamics power one VD audition ic's
Any phono preamp from Naim is awesome.
How about a step-up transformer since the DK has a basic phono amp built in. Spending big bucks on a really great phono pre is still going to be going through the DK amp?