[DivergeUnify]

Title says all. I need an all in one unit to power these headphones and hopefully harder to drive cans for the future. I run out of my laptop. I dont need pocket portable, but it should be backpack friendly

 

[PurpleAngel]

Title says all. I need an all in one unit to power these headphones and hopefully harder to drive cans for the future. I run out of my laptop. I dont need pocket portable, but it should be backpack friendly

 
Audio-GD NFB-15 external DAC/amp, $270+shipping.
USB, optical, coaxial inputs
Dual WM8741 DAC chip.
Headphone amplifier with plenty of power.
http://www.audio-gd.com/Pro/Headphoneamp/NFB1532/NFB15.32EN.htm

 

[Gagarin]

   
Audio-GD NFB-15 external DAC/amp, $270+shipping.
USB, optical, coaxial inputs
Dual WM8741 DAC chip.
Headphone amplifier with plenty of power.
http://www.audio-gd.com/Pro/Headphoneamp/NFB1532/NFB15.32EN.htm

 
That's a good choice, but I wouldn't call that "backpack friendly" at all, haha.
 
The O2 amp variants should have enough power to deal with the K7XX. The JDS labs O2+ODAC is $279 
 
Even smaller is the Fiio E11 with a usb powered dac of your choice.

 

[DivergeUnify]

That's a good choice, but I wouldn't call that "backpack friendly" at all, haha.

The O2 amp variants should have enough power to deal with the K7XX. The JDS labs O2+ODAC is $279 

Even smaller is the Fiio E11 with a usb powered dac of your choice.

is there a way to have a quarter inch jack on the o2?

 

[PurpleAngel]

Is there a way to have a quarter inch jack on the o2?

 
You can get an O2 with the 1/4' headphone jack, for like $30 extra.
http://www.jdslabs.com/products/35/objective2-headphone-amplifier/
 
Where as you can buy a 1/4" female to 1/8" male adapter for under $10 (off Amazon or eBay).

 

[WickedChicken]

Try a Geek Out 720 or 1000. I ha e the 720 and it will push my Q701 to ear-shattering volumes.