I quote from [
http://www.asus.com/product.aspx?P_ID=t4yhK6y9W9o7iQ9E ] what ASUS is writing on the Overview side:
"ASUS Exclusive Features / ASUS Crystal Sound"
"DTS Surround Sensation UltraPC
DTS Surround Sensation UltraPC delivers exceptional 5.1 surround experience through the most common PC audio setups - your existing stereo speakers or headphones. In addition to virtual surround, “Bass enhancement” provides stronger low frequency bass sound, and “Voice clarification” provides clear human dialogue even with loud background sound. With these technologies, you may experience a better home-theater audio with ease. To experience DTS Surround Sensation UltraPC, download the updated audio driver & latest BIOS at www.asus.com".
"Industry Standard"
"High Definition Audio
Enjoy high-end sound system on your PC!
The onboard 8-channel HD audio (High Definition Audio, previously codenamed Azalia) CODEC enables high-quality 192KHz/24-bit audio output, jack-sensing feature, retasking functions and multi-streaming technology that simultaneously sends different audio streams to different destinations. You can now talk to your partners on the headphone while playing a multi-channel network games. All of these are done on one computer".
Furtheron they write this on the specifications side:
"Realtek® ALC1200 8 -Channel High Definition Audio CODEC
DTS Surround Sensation UltraPC
Support Jack-Detection, Multi-Streaming, and Front Panel Jack-Retasking
Coaxial / Optical S/PDIF out ports at back I/O
ASUS Noise-Filtering".
What do they mean when writing this motherboard have both this features? Is it two separatly sound-circuits on the motherboard or do they mean that they have a 8-channel hardware but both Realteks 7.1 AND UltraPC DTS 5.1 software? To go back to my main question, WHAT GIVES THE BEST SOUND? Should I buy 5.1 speakers and use ASUS DTS ULTRA PC 5.1 OR should I buy a set of 7.1 speakers and use REALTEK HD 7.1?