[bonjurkes]

Hey to everyone,
 
I was using Sennheiser cx280 headphones since I dropped it on the bus and now I am in need of a new headphones. Before CX 280 I was using some cheap headphones so now I am planning to buy something nice and not so expensive IEM.
 
I researched some about the IEMS and most of the people recommended me M2, but I was just wondering is there any other option that is better than M2 about price / performance.
 
I read about M2  that it's isolation is mid ranged, not so great, so I really liked cx 280's isolation and is M2's isolation like that or worse/better?
 
 
So I would like to read your opinions about alternatives to M2.
 
I like to listen some rock music (like apocalyptica, not so heavy), house music and dubstep. I am not bass addicted person, so I guess M2's bass will be enough for me.
 
So I am wondering if I should choose M4 or M2