I think you meant 100 ohm output for Bat Rex not 100 kohms. 100 ohms into 41 kohms should be no problem.
No experience with Bat or Lamm. From looking at your system page it looks like you are going from the 32 to the Rex. If the Bat 32 worked well the Rex should work well also.
No experience with Bat or Lamm. From looking at your system page it looks like you are going from the 32 to the Rex. If the Bat 32 worked well the Rex should work well also.