What preamp would you mate to your Rogue M180's?

Any opinions? Currently itching to try a new tubed preamp. Had a McIntosh C2300 with good tubes, but it was a little flat. My McCormack ALD-1 Platinum sounds outstanding, but I would like to try another tubed pre. Others I have had in the system: EE Minimax w/NOS tubes (a little rounded off); ARC LS26 (but not with the Rogue; it did sound outstanding).

Any good mates with the Rouge? I know they make some outstanding high-end preamps, but they are impossible to find for a demo locally.