I've used the Magni with them and it does a great job. It powers them as good as they need. But at the end of the day, the LCD2's are a high end headphone and will of course benefit from better amping. I'm sure you will be happy with the Magni for now as there isn't a great lot of difference to the Asgard 1 IMO. Plus It will give you time to play with your LCD's and see how you like them. You can then decide which direction you want to go. I found that if you pair the Magni with a half decent dac, then you've already got a good LCD2 set up. The LCD2's are very transparent with source, I would say more so than with amping requirements.