Here's the Linear's figures. How it equates to the voltage signal of the Arcam I can't really work out. As a comparison the rHead has 130mW into the 300 ohms needed to drive the Senns. So the Lehmann is more powerful. Perhaps someone with more brains than me can work out the difference in figures between the FMJ and the Lehmann.
|Output power||400 mW/60 ohms|
200 mW/300 ohms
|Output impedance||pre-out 50 ohms|
phones out 5 ohm