I'm a dealer for Harbeth, Lux and LFD so take or leave my opinion. Both are excellent but the Lux 505 is a bit more involving, faster and more exciting to listen to. Takes many hours to sound it's best. Maybe 200+ hours. Just about all customers have agreed the Lux is better. Plus it has a pretty darn good phono stage. 505 is class AB as chosenhandle has mentioned. Feel free to call us at 248-259-7017 if you want to discuss.
www.davidmichaelaudio.com