I owned an M3A (in fact two of them) and I honestly like the L-1 better. It may have a touch more "Tubey" sound. The M3A was noisier and a little leaner sounding. Also, the volume is much easier to control with the L-1. The M3A phono section is a good one, no doubt about it. However, my vote goes for the L-1 and an outboard phono. They're certainly a lot of them to choose from.
BTW, AI has come out with the new L-2 linestage with remote and a phono section(sold as a add-on) for it. I have one on order so as of right now, I can't comment on its qualities.
BTW, AI has come out with the new L-2 linestage with remote and a phono section(sold as a add-on) for it. I have one on order so as of right now, I can't comment on its qualities.