I've noticed the same thing about those Beyers, huge sounding but not very much detail.
That can be great for certain situations or instruments, but I have noticed that muddy effect on
several of the recordings done with those.
If you want more detail, certainly look at the AKG line. I actually prefer the sound of the 460's
to the 480's. They have the same detail as their newer brothers but a bit more sheen on the top end.
They are certainly alot cheaper on the used market. Plus you have the various capulse options to choose from, which the Beyers can't touch.
Schoeps give the most detail, but come with the highest premium. I like what I've heard from the Milabs.
Nice size factor too on those.
I would stay away from the KM184's. Many of the newer ones sounds like ass. The older ones are much better but
it's hard to know what to look for when buying those.
I think the Peluso's are a great buy and terrific option, certainly the best in that price range.
You get some fantastic detail, but they can be a bit fatiguing to my ears. Not sure why that is.
If you can't afford Schoeps, I would go with AKG 460's and several sets of caps.