Hi! This is my first post here at head-fi and my wallet doesn't like this.
Currently I own a Grado SR60i and the modest Superflux hd681. I love the sound of both but, due the nature of those headphones, they leak quite alot and aren't suited for office work.
 
Put it simply: If you are a Grado fan, which closed back headphones would you recommend? I mostly enjoy the sound quality; the instrument precision, the brightness and the soundstage.
 
I'm looking for some proper cans over-the-ear or on-ear to use mostly at work (I work in a openspace, so a lot of talking going on). Apart from a good isolation and low leaking, it should be comfortable since it will be used hours straight. Also, I wear glasses and have a medium/small head.
 
Sound quality is the most important part. I think I'm looking for a neutral signature and a wide soundstage. I'm not a basshead. I'll listen mostly rock, grunge, indie, jazz, lounge/chillout and eventualy some electronic music such as drum&bass & electro...
 
My price range is bellow 150£.
I'll use the fiio e07k to drive them.
 
I've made some research and found some cool candidates:
AKG k550 - The reviews seemed to good to be true: precise, well balanced, soundstage, good isolation... BUT looses a lot of bass when wearing glasses (anyone with glasses can confirm this?)
Audio-Technica ATH-M50(x?) - nice reviews but the mids seems to be recessed. How is isolation and leakage? Can the fiio correct it with the EQ?
Beyerdynamic DT770 PRO Headset (250 OHM) - I've read the were colorful and for bassheads but extremely confortables. How do they compare with Grado?
Shure SRH840 - I've read good references but they cross the 150£ barrier. Are they much better than the previous?
Seinnheiser Momentum On-Ear - same as Shure.
 
Which one is best suited? Does anyone have experience with one of those phones paired with fiio e07k/e17?
Any other headphones bellow the price range are more than welcome! Many thanks

A much asked question.  Unfortunately the answer is that there is no closed can that sounds like a Grado.  Well there was one (and it was vented), but it sold out in about a day.  See:
 
http://www.innerfidelity.com/content/whiskey-grado-companys-first-closed-back-headphone

kg jag said:

  A much asked question.  Unfortunately the answer is that there is no closed can that sounds like a Grado.  Well there was one (and it was vented), but it sold out in about a day.  See:
 
http://www.innerfidelity.com/content/whiskey-grado-companys-first-closed-back-headphone

Click to expand...

 
Sure! I couldn't agree more on that! I'm just trying to probe if any Grado user would recommend one of those closed cans and comment about some possible similarities.
Those closed Grado looked pretty sweet! 

(ups duplicated the previous post and seems I can't delete this... please ignore this post)

The closed can that I hear to be the closest to the Grado SR sound is the Ultrasone HiFi 780.  However, it doubt that it meets your other requirements.  On top of that its price (in the U.S. at least) has doubled in the last couple years and is now outside your budget.
 
You should also consider the mid-centric and quite good Koss DJ 100 family.  M50 pads can be added for additional comfort.
 
I would steer you away from the DT 770 and M50 as both as recessed mids--the opposite the of Grado sound signature.
 
In the U.S. the UE 6000 is being closed out for under $100.  If UK pricing places it within your budget, here's a review:
 
http://www.innerfidelity.com/content/surprisingly-good-logitec-ue6000-and-ue9000

Mikros 90 by far. HD25-1 is quite a distant second.
 
http://www.head-fi.org/t/689357/closed-grados-a-compilation-of-30-threads-poll/15#post_10404753

I far prefer the AKG K550 over the M50. However, not really Grado like (neither are). But the AKG K550s will give you probably the biggest soundstage of the headphones in your list.

AKG k550

Funny. I've heard all the ones on the list except K550, so it has to be the most Grado-like. I would bet it's a good choice (unless you have a small head). Still, I was surprised by Mikros.

Thanks for all replies! Never heard of Mikros 90 but they seem hard to find in europe (I've just ran a quick search at amazon and ebay uk). I'll read further about those.
 
About the k550 I've heard they have to be perfectly sealed and by wearing glasses (this is a very important point for me) they loose quite a lot of bass. Can anyone comment on this? Could I use a fiio e07k to compensate the bass loss?
I've also noticed in reviews that k550 is quite similar to the k271 and I've read somewhere that they could be used with glasses (though a bit uncomfortable). Also the k271 appear on the poll posted by Claritas (nice thread! thanks ).
 
How about the Beyerdynamics DT150? Can anyone comment on the sound quality and possible similarities with the Grados?