Quote:  The PS1000 was a big disappointment, the price tag in Norway is almost 4000 USD and they where not close to my T1. I also think that my K701 is a bit better than P1000.

I use a Stello DP200 dac/pre/headphoneamplifier at home and my mobile dac/amplifier is a QED MB45 amplifier and Kingrex USB dac. DT770 and Denon also runs unamped from laptop or mp3 player.   1. Beyerdynamic T1. Best sounding dynamic headphones I've ever heard. 2. AKG K701. A little to...

I have DT770 and T1 and love both headphones,   For the moment I borrow Grado PS1000's and I still prefer T1.

  Quote:  My netbook is running on it's internal 6-cell battery   The Kingrex and the QED runs on 12V DC and when I was in the store the price difference between 2,5ah and 5ah gel battery was only 3USD and since my rig never is going to be ultra-portable I went for the largest...

The clips are for connecting power cables to the battery.   The clips are a temporarily solution, I am going to find a better solution in near future.

Not exactly ultra portable but it sounds good. Samsung Netbook, J. River, Gel battery, Kingrex Ud01, QED MB45, Beyer T1

I like Audio-Technica ANC-7B noise cancelling headphones.   My brother owns them and they are good all rounders and reasonble priced. You can read a lot about them in this forum.

I would also recommendt Beyer DT770, sound is ok, build quality is very good and they are comfortable. I use mine at work 5 days pr week.

The DT770 Pro have a kind of hammock frequency response, much bass and treble but they are a little on the bright side.   But the T1 are a bit dark compared to the HD800.

Beyer DT770 Pro are quite bass heavy.

Quote: It's easy to love the T1,  build and sound quality is sky high.    

I would say that my AKG K701 which costs about 300 USD in Norway is my headphones who balances best price/quality.

What about just buying some T1's since you already own the A1 amplifier?   I have done some A/B comparisation of T1 and HD800 on a Naim Headline amplifier and I prefered T1.

The cheapest and probably best solution to get the Kingrex to sound good is to connect it to a little gel battery (typical motorcycle battery). The power consumption is low so you can run it for a couple of days before you need to recharge the battery.