Sound card for laptop!

It is clear that this sound card does not compete with its bigger brothers such as ST, STX, DX, Xense but gods which manages admirably for a laptop at what we can not put dedicated sound card!
I took it in my replacement Recon3D integrated my M14X R2 that propse THX Trustdio pro and xonar U3 widely wins the duel.
While the THX TruStudio surronud brings surround sound but poorly managed and I find in adjustable, Decho and low much food that all medium and treble, but the sound is still localized.
So I wanted to test the Dolby Headphone Xonar U3 and the most no echo suddenly the sound and clearer and more real and more are easily identified or comes to the sound.
For 40 euro Dolby heapdhone worth it if you are a big player, it's the technology employed by the famous MixAmp.
I owned before Triton AX true 5.1 headphones and I much prefer my new config containing the xonar u3 and Dt 990 headphones.
Strangely this is a stereo but the best we identify the sounds newt and general and incomparable quality so the dt 990 pushes the limits of very high sound reproduction.
Moreover Dolby headphone allows adjustment of virtualization pushed a 7.1 system and I can you certify that if I move the rear speakers later in the difference xonar manager actually intends games.
Basically all owners of laptop and headphones, which plays much it should possess the u3 xonar.
You can see numerous positive comments on the US site amazon.

EDIT 1:

Coupled with a JDS Labs - Bass Boost v2.03 Cavg the DT 990 and xonar U3 pushed even without loins and spatialization of the helmet takes on another dimension, its bass and detail are even more marked than this and no amp helmet.

I do not imagine that this can give with an amp and a high-end sound card.

EDIT 2:

Attention my comment if it did was make with the STALKER games that are reputed to be married very well with the Dolby headphone.
I just tested it so with The Witcher 2 and the effect is not at all convincing, however with a high-end headphones (STAX 2170) and DAC (Musical Fidelity V-DAC 2) stereo you can have fashion a truly enlarged soundstage width and depth, far exceeding the system dolby heapdone. But price is not the same (1200 euros for the nine STAX 2170 combine DAC)