Looking for headphones for female vocals under $1000

[bearwarrior]

I am currently having Beyerdynamic T90 with bottlehead Crack with Speedball. However, the treble problem of T90 is just not suitable for female vocals and some of electronics music. So I tend to add another pair of headphones to complete my inventory.

Since I have Crack and a lot of tubes now, I would prefer some high impedance headphones. Now, I am considering Grado. I hope someone who has more experience would give me some guidance here.

Some other planar headphones with lower impedance are also considerable. But the amp suggestion is needed.

Thanks!

 

[FastAndClean]

you already have one of the best mids in the game (HD 598) for female vocals under 1000 dollars

 

[bearwarrior]

  you already have one of the best mids in the game (HD 598) for female vocals under 1000 dollars

 
That is true. However, I found the clarity of HD598 is limited. Hoping for something better