Best headphones under $150

Are you going to use them for Shooters like Battlefield or Call of Duty, where you need to pinpoint sounds?  If not, then I recommend you get the Denon D1100.  It is small, light, comfortable, easily driven and has a hell of a lot of bass.  You can then get cheap clip on mic for under 10 bucks on ebay that will attach to the cable of the headphones than hangs down.  

Thats the best bassy solution for gaming without the need to poinpoint sounds, just to enjoy the game and get some great bass.  There is also the Beyerdynamic DT700 if you can find it used.  Its much bigger but sounds good and is very comfortable.  

Fischer FA-011 will work perfectly for you excellent detail, sound stage and bass.  Will do your music genres very well and perform exceptionally well in gaming.

Honorable Mention would be Panasonic RP-HTF600, great value with good sound stage and bass, not as clear/positional as the Fischers but still better than most in your price range.

Sorry just realized you wanted closed cans.

For music - m50's Sony XB series

For Gaming - hard to say a good set that is closed, Ultrasone Pro 550 are the best I've used, however, very hard to get the soundstage needed in closed cans.

Music: JVC HARX700 or XB500's

Gaming: Superlux HD681

Grado sr60i's (or 80's your call...) for music

The Superlux HD681 Fabio suggested is really nice for gaming.

RockJaw, it would help to know what your plugging the headphones into.

mp3 player?

Computer On board sound?

Computer with a Sound card?

XB series (500/700) or Koss Pro DJ100.

My 2 favorite headphones under 150. Either would work for you, but I think you may prefer the XB series. 

Note: I haven't tried the FA-011 but I really want to.

It seems like the music you mostly listen to requires a good bit of bass, and my personal recommendation for such a headphone under $150 is the Ultrasone HFI-580. The Panasonic RP-HTF600 also gets a lot of love here, but that's mostly because of how well it does at the price, and I think you could do better with your budget. For gaming I would recommend the Audio-Technica AD700 plus a separate mic. Like swbf2cheater said, if you don't play precision shooters the situation is different. The Ultrasones should be more than enough in that case.

Quote:

Originally Posted by derycksan 

Fischer FA-011 will work perfectly for you excellent detail, sound stage and bass.  Will do your music genres very well and perform exceptionally well in gaming.

+1

If you can stretch to using open cans then these have no equal in your price range, they easily compete with $300+ cans.
 

Quote:

Originally Posted by RockJaw 
Thank you all for the replies so far, and to answer your question, I will be using them on a computer with a Soundcard, and also with an Iphone 4s

What the make and model number of your sound card?

Quote:

Originally Posted by RockJaw 

Well here comes the embarrassing part.. >_> I'm still using the stock Conexant high Definition SmartAudio 221 card that came with the laptop, cause I don't know how to upgrade Soundcards.

If you could include how to do that, I would love that lol.

Between the two I would choose the M50. As for the soundcard, I would recommend getting an external DAC (Digital to Analog Converter) instead. They have better performance for the price than soundcards, and connect through a USB cable. The only reason I would look at a soundcard is to save space, and some DACs are really small. I would take a look at the FiiO e10, looks like a great value. Mine's on pre-order.