Not met expectations over previous Creativ X-Fi sound card

Due to the purchase of a new PC, the existing internal Creative SB X-Fi PCI could no longer be used because of their PCI connector. Hoping to an external USB sound card from further technological changes in the internal Einsteckanschlüssen to be safe in the future, I had the external Sound Blaster X-Fi Surround 5.1 Pro can come.
I was also satisfied with the internal version for years. The internal variant was previously operated under Windows 7 32Bit Prof. and could my audiophile (stereo) to cover claims fairly well. Hence my assumption that the external X-Fi version of the internal would not inferior,

But that was not the case.

The new Soundbox have their service under Windows 7 64bit and Prof. do with a nearly 10-year Teufel Concept E Magnum 5.1 surround set that is perfect for my audiophile-office claims cope. The main problem was that the external SB X-Fi not reliable stereo music (MP3, internet radio, etc.) distributed on 4 speakers with subwoofer and center support. Sometimes something came out of the rear Teufel speakers, sometimes unable to. Had I previously downloaded and installed the latest driver from the Creative-side down. Although the functional test of the connected speakers worked well, but the Windows 7 64bit drivers do not seem to be mature.
In addition, the settings of the software compared to the previous version have been significantly changed. The stereo upmix to 4 boxes plus. Integration of center and subwoofer worked even after conscientious configure the Windows sound settings in Control Panel no. Whether that possibly lies on the combination with the Teufel system, I can not judge. But several indications about the not always smooth collaboration of these external Soundbox with vicious systems found on the Internet.
In addition, the sound seemed to me (at least in the audible 2-channel operation) this USB card is not with the ability to keep up the old card. It sounded somehow duller, less brilliant, less dissolved and quieter (you had to turn on the level knob all the way in to hear halfway in low volume). Since some equalizer settings helped (the famous bathtub curve) is not much.
A provided by the neighbors 20 euro expensive external LogiLink 7.1 Dolby USB sound box was doing their service as better. Sonically though not with the old Creative SB X-Fi PCI quite coming along whose settings were reliable and packed all my boxes Devil Systems were driven in stereo upmix operation. Then some EQ settings - and the thing was having to make sonic compromises with the old card for me in consciousness reasonably okay.
Another gripe with the Creative sound box is the fact that the installed Creative driver could not be uninstalled. Windows 7 64bit Prof. always responded with an error message when trying was in the program function of the Windows Control Panel to remove one of the creative components. A separate explicit uninstall routine was not installed by Creative. Fortunately, I'm in front of basic software installations always a full backup of the boot disk via Clonezilla in the form of a disk image. After 10 minutes, the primordial state was then restored.
So no, Creative !!!
Soundbox declined. In this context, a praise to Amazon, where the return process runs smoothly.