I have recently acquired Atma Sphere MP-1 MK 3.1 which I'm using with Atma Sphere M-60 monoblocs and Quad ESL 2912 speakers. MP-1 is absolutely fantastic machine (as well as M-60). If you are looking for new preamp, you mush listen this preamplifier. It is expensive but this is one of the finest preamplifers ever made and you'll have a lot of troubles to find better at any budget.