I just sold a pair of ATH AD2000s(non-X). They have an aggressive,forward presentation,with excellent mids. They are killer for rock,metal,female vocals and electronica.
Theyre also not super comfortable,with a very tight clamp,so thats something to be aware of. Theyre also very hard to find these days,as they were only released in Japan back in the day.
Other headphones to consider that have a similar sound signature are Grados/Alessandro. Also very mid centric,with a forward aggressive sound. They have more energy in the upper mids than the ATHs,which you seem to like. Sorta easy to drive from a phone,but an amp is suggested. I do find them to be quite uncomfortable though.
Another to consider is one of my favorite headphones of all time,and better than the Grados and ATHs,is the AKG K240 sextetts. These have the best mids of the bunch. Fast,forward,aggressive sound. They come in three variants,EP,MP and LP. EP having the most midbass,and LP having the least. MP is right in the middle,and my favorite.
Theyre also quite inexpensive,maybe around 100-150.00 USD. Buying used is a must as theyve been discontinued for over 40 years. They are very power hungry and require quite a strong amp,being 600 ohms and a 93 sensitivity. The best and least expensive way to drive them will be by using a vintage receiver. the sound is fantastic.
I have a very high-end and expensive set-up,yet I still find my Sextett/receiver combo to be very enjoyable.
I have made video reviews on buying Sextetts and vintage receivers on my Youtube channel(link below). Have a look and if these sound like something you'd want to get into and have further questions feel free to ask.
