I haven’t listened to the Grados but I did manage to get hold of the Sony mdr 7506 headphones off ebay not too long ago. Had to wait about 2 months for them to ship over from the US and they were second hand but they only cost only £40 inc postage and they sound amazing. They’re closed back too, so they cut out most background noise. I believe the Grados are open, meaning computer whirring and such will be much more audible.
I’d prefer open headphones, they tend to be more comfortable for long sessions, i would rather remove the background noise if possible, like moving into a loghome deep forest
I have Sennheiser HD 570 and like them very much, even though i’m on my second broken cable, and they have begun to rattle on sub bass (Due to my drunk brother misuse of them ). But i’ll get HD 600/650 next time for its comfort and great sound, they are not cheap though But i use the headphones alot, so that’s okay.
Sorry for not providing Grados info (just felt like working for Sennheiser for a moment ), but i’ve read about them and for normal music work the sound should be great. If it was’nt for my absolute satisfaction with the HD570, i would definately go to a music store and try the lot out, since headphones are so different, and what some like others don’t.
These are also a nice version of the classic AKG240 originally designed in 1974, which are still made, sold and used today. The money you spend on these will probably last through 10 pairs of behringers, provided you don’t use them when drunk!!