Grado SR60i vs Audio Technica ATH-PRO500 vs Audio Technica ATH-PRO700

[ScaryCornflakes]

First time poster here.

I have some money stored up and I really want to buy some good quality headphones with in £100-£120.
I have scoured the internet and I have settled on these 3, and I would really like some help to choose.

I would mainly use them to listen to my laptop, iPod Touch or iPad, so they have to be portable with a cable preferably under 1.5m.

Thanks!

(I posted this on another forum but no replies yet, so I'm not spamming)

EDIT:
I listen to DnB/Dubstep so good bass would be a bonus.

[ScaryCornflakes]

Grado SR60i - Grado SR60i Open Back Headphones (SR 60i)
Audio Technica ATH-PRO500 - Audio Technica ATH-PRO500 DJ Headphones in Black (ATH-PRO500 BK)
Audio Technica ATH-PRO700 - Audio-Technica ATH-PRO700 DJ Headphones in Black (ATH-PRO700 BK)

[ShaunG]

As I'm sure you understand the Grado SR60i is a very different headphone to the other two you mention.

The Grado is open back, which means it has quite a different character to the sound. Take a look at our buyers guide for the differences between open and closed back headphones. The SR60i is really designed to be a home listening HiFi headphone.

The two Audio-Technica headphones are really designed to be DJ headphones, so are closed back. The sound is quite a bit more bass heavy than the Grado, so would suit your musical tastes.