lol sorry to necro this page but I've got myself a D2000 recently (yes very very late to the party). Long story short, I've found out a bit them through a co-worker and later got one myself through a 2nd hand sale forum (kijiji).
While I really like this headphone I do however noticed the recessed mid RIGHT AWAY.
I own a Philips L2 and have sampled my coworker's Grado SR125i numerous time and I do quite like the mid-forward sound signature. I also pulled the trigger on B&O H6 which has very good mids but somehow fate brought me together with the Denon.
That being said, the mid bugged me a while and I finally found a way to fix it.
First I bought the
Lawton mod (
www.lawtonaudio.com and refer to the tune up kit) hoping it will fix everything. It did improve in some area however I find the bass overdamped and some area just aren't as good as stock.
I had to "mod the mod" so to speak a few time until I get it right.
What I notice is that
the foam he put in the earcups change the relationship the most. That foam is very good at reducing bass and maintain the same treble / mid. But the problem is that it's too good at reducing bass and the bass end up sounding muffled.
So I took it out, and
cut a hole in the middle (like a donut shape) and put it back then it's all good. This is very surprising because it is enough to make my Denon mid-forward (yes you heard it right, not neutral, but mid forward).
What you can do is to keep all the Lawton mod intact, but play with the foam.
Stock Lawton Mod Foam = muffled bass but very emphasized treble and mid.
Donut Shape of The Same Foam = Mid forward with same treble and slightly reduced bass (this is what I end up going with).
You can also gradually reduce the foam slowly until no foam then you got back to the original slightly V-shaped sound signature.
I'd upload the picture but I think my account is too new so it doesn't allow me to do this, I will update it once I can.
Thanks.