Although an older thread, I thought I would bring it back to life. I had the M1 DAC and recently replaced it with the Aeris DAC. I submit both are great DACs and the other components in your system will determine what DAC works best for you. I have an Jeff Rowland Continuum S2 integrated amp and I think the synergy between it and the Aeris gives it an edge over the M1 in my system.
