Audible Illusions M3B or L3


I plan on getting one of these two. I've read a lot about the M3B but very little about the L3. Has anyone compared how these two preamps are sonically? Any difference? If you were to get one of these, which one would you get, and why?

How is the 'Gold' phono board for LO MC's (I'm using a Lyra Kleos now, in to a Fosgate Sig. External phono preamp)?

In advance thanks for your input!
louisl
I have an M3A with the gold phono boards. I use a Denon DL103 with the ruby cantilever retip from Soundsmith. Sounds great to me. I do not know if the circuit differs at all in the M3B.
Rnm4...besides the phono Gold boards sounding "great", how quiet is the phono section.
Very quiet, however it is tube based so depending on your speakers you may hear a faint tube noise with your ear to the speaker. Likewise I use a Denon 103r low output MC cartridge.