I am considering installing the resistors on my M60 tweeter's as well.

In an earlier post, Alan made reference to two different sized resistors that could be installed (a 1.4ohm I believe, and an unspecified larger size). Do you know which size you installed?

"Sounds" like your very pleased with the results. Have you noticed any negative impact on audio quality since installing the resistors (i.e., loss of imaging, air, space, anything else)?

Joe