Hey,im buying new headphones for 200euros or less. Im listeninig to hard rock and heavy metal. I want open and neutral headphones,i was thinking about Beyerdinamic DT 990 Pro. My amp is Bravo V2
For rocks music, I highly, highly [yes, twice xD] recommend Grado! Given you already have a tube amp, it will be a great benefit for the Grados as it adds warm to the sound and making it a more energetic headphone to listen to. Not sure about the output impedance though
Hope it helps,
Sr225i, if you want a new pair. I think you could get SR325is used for about 200 euro (there were plenty sr325is < 200$ + shipping + Vat <200 euro on the For Sale part of this forum).
I wouldn't call Grado neutral, if you have a chance, try auditioning any of the Grado before buying.
The lower end Grado will work too if you wish to know. The DT990 is not a bad choice either :)