Audio Mirror or Line Magnetic- DAC Choice


I have only heard the LM DAC. Anyone familiar
with these two? I want an R2R DAC with Tube
to $2,500 max.
chorus
I didn't catch that the LM was not R2R. Still it seems like a well built DAC. Not that I feel the need. I love my AM DAC.
@mesch  
My message was intended for the original  poster and not you. No worries.
Thanks for the correction on the LM as a non R2R dac.
It was my understanding that even a R2R DAC could use a chip?