L52 and L12 are the same size, the older L12 has the wood wedge legs and the newer L52 has the plastic feet, just a matter of style, if you have both choose which you like the looks of better.
Got one of these with my Ma 6100. I can't beleive how much these cabinets go for alone. I was lucky this came with the MA 6100 I got two yrs ago. Perfect after getting years of grunge off it! Sure is pretty. The amps not bad either. Tons of inputs too. I plan to take it with me when I go. Not that I plan to leave anytime soon. Too many LP's to listen to and more to get!!!Had a lot of fun with it these last two years!!!