Hi,
I did not mean to say they are the same mic (KM84 VS KM184), they are not. But, not knowing why the OP wants KM84's specifically, I thought I would suggest these new ones.
I do like my KM184's they have good uses, when I need brighter recordings. I used them to record the top of a leslie organ speaker recently, along with a tube mic on the bottom, and this worked out very well. I did not have to EQ very much at all.
One thing I have noticed once I moved to digital recording, from 2" tape, is that there is still a need to take care in the recording of the top end of the spectrum. I do tend to use less EQ on the way in, and instead choose a mic and preamp that shapes the sound from the start, without introducing as much EQ shaping, because I find that in the DAW it is harder to compensate for an artificially brightened recording, when using darker microphones. Specifically, I find using EQ to brightern a dark mic, increases unwanted high frequency material, that, in some cases can be too much, or not the desired kind or material I wish to have in the mix.
I find adding brightness via an EQ to sometimes end up getting too weird in the top end, when mixing the song. If I do not add the EQ, but instead use a brighter microphone, this results in a more natural top end, that is not quite as harsh, and is easier to place in a mix with other instruments.
But, that is my personal experience, and this may vary from engineer to engineer.
Cheers