I have an LP and an m100. I found that on the LP -by putting tape over 2 of the vents and 3/4 of the 3rd vent (just leaving 1/4 of one vent open) that the lp sounds much closer to the m100. it's not completeley there of course but 75% there, still slightly boomier, and slightly less mid clarity. but a huge improvement for a few pieces of scotch tape. I will remove the shields and put the tape inside next.
10/3/13 at 5:14am