What a better pre-amp Arc Ls-27 or Ref-3


I recently picked up a Ls-27 but I'm wondering if the Ref-3 would of been a better choice. If you have heard both I would like your opinion.
taters
What do you feel you are you missing that you are looking to the Ref 3 to improve? Obviously you aren't getting everything you wanted from the LS27 or you wouldn't be asking.
I went from the LS27 to the Ref3, and found the Ref3 had a cleaner, clearer sound, less tube like. Both were excellent but the Ref3 was a step up, and the Tung-sol 6550 NOS tube made it even better.
Tmsorosk - How was the bass response on the LS27 vs. the Ref 3? As I said in a previous thread, I bought an LS26 and was disappointed by the poor bass extension and weight, so don't want to make that mistake again.
tmsorosk, kindly contrast the Ayre KX-R vs the Ref 3 if you would.

mahalo.
rhyno
I have an LS-15 which has served me well. what might I gain with the 27 or Ref 3?