Simple, but good. Beyerdynamic T90 + Ephipany Acoustics EHP-O2D

You can try K551 at both Elkjøp and Expert, but they want the crazy price of $410 for them so do not buy them there. I think K550 will be harder to find on display, but you could check out Soundgarden.

Beyerdynamic T90 Beyerdynamic DT880 600 ohm Sennheiser HD25-II Beyerdynamic DT770 80 ohm Sennheiser PX100 Denon AH-NC 732 Koss Portapro (only sound on one side) Sony MDR-v500 (just imagine how bad they are considering the state of my portapros) Shure SE315 JVC HA-FXD80 Cosmic Ears (cheapest...

Is it true that open headphones have better soundstage?  - Yes, this is in general true. There may be exceptions and a $1000 closed headphone may easily beat a $100 open headphone.   When do I need an amplifier?  - You will always need an amplifier. Your soundcard, mp3-player, phone ect...

  I do not know how far you are willing to go when it comes to price, but Shure SE215 are in my opinion a very good IEM for the price. You get good build quality, very good isolation, detachable cable of good quality, cable behind the ear design and good sound quality.   The only downside...

Thanks, I will look into Sansa Clip +. The price is a very good argument.   A smartphone would not be a good choice for me. It is just too many disadvantages to make it preferable over a single purpose music player.

I am looking for a new portable player. I want:  * Durability (I am going to use it at work - Landscaper/tree climber/construction worker)  * FLAC support  * Low output impedance (It will be used with BA IEMs)  * Hardware buttons  * Compatible with Linux  * At least 8 GB  * Small size  ...