Thanks for the replies. 'Front face presentation' is probably not the right phrase for it.
I have added k550 to the list to give the k701 a bit of competition.
Will play a few songs from the artists you guys mentioned and see how I go. Will keep you guys updated. Thank you.
I absolutely agree with you on the front face presentation. I find the K701's pretty aggressive (still smooth) and very alive sounding, very sparkly, quick, immediate, punchy. They take your attention 100%. They're not laid back headphones like HD650's which you can have on your head and read a book at the same time. You just can't focus on anything else but music. I would have expected such sound from Grado's rather than K701's by only reading descriptions of headphones.