The Benz Lukaschek Phonostage designed by Benz with the Ruby in mind has a loading of 22K. This seems pretty in line with what the previous posters have said. My Musical Surroundings Phonomenal only has settings of 50K, 2K, 1K and lower and with these options my Benz L2 sounds best at 2K.
A bit System Depending. I used 47Kohm with my Ruby, in my System it sounded very good with that Load. Benz himself ran it with 47k, but it will work with other loads, too, of course.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.