Auzentech X-Fi Prelude 7.1 review

How does a soundcard manufacturer challenge Creative? It's all in the chips

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Our Verdict

Top features and great performance


  • Intuitive software
  • Great build and design
  • Excellent sound quality


  • Lacks front panel

There isn't a massive choice when it comes to dedicated sound cards these days.

Sure, there are lots of cards for the would-be musician, but for the gamer or media enthusiast the choice essentially comes down to working out whether to buy a Creative card or stick with the motherboard's chip.

X-Fi Audio

Auzen hopes to change that, by licensing technology from Creative - namely the quite superb X-Fi chip. This is the first time that Creative has licensed any of its chips to a third party.

What makes it an interesting choice, however, is that there are already a lot of Creative cards based on the silicon X-Fi heart. So how is Auzen's effort any different?

Its previous PCI audio foray, the X-Meridian, flirted with being a flawed genius. It was a wonderful card for enjoying music or videos, thanks mainly to the fantastic build quality and engineering.

Yet gaming performance was a significant let-down. Auzen appears to hope that switching to the X-Fi processor will give it the all-round sound card capability that you can reasonably demand for £120.

Worthy adversaries

Unsurprisingly, the main competitors to the X-Fi Prelude are Creative X-Fi-based PCI boards. Or, to be more precise, X-Fi cards bearing the increasingly tiresome Fatal1ty branding.

These are the standard version, the Champion Series and the Professional Series, with the Prelude priced closest to the Champion Series at the time of writing. All of these cards feature a front panel connector, which is an extra purchase for the Prelude (also known as the X-Tension Board).

Because they're based on the same audio processor, there isn't a lot to differentiate between quality of sound - it's all excellent. However, the Prelude has the edge when it comes to build quality and engineering.

The software suite is also intuitive, useful and doesn't smack of bloat. Add to this the optical connectors and the included optical cable, and the Prelude begins to sound like an extremely attractive proposition.

There's even downloadable driver support for Dolby Digital Live, DTS Interactive and ALchemy for Vista-based gamers, although these are still beta versions. Overall, it's an impressive all-round package, despite the lack of a front panel.

Tech Specs

Product TypeSound Board
Number of Digital Audio Optical Input1
Number of Digital Audio Optical Output1
Product FamilyX-FI
Number of Audio Line In1
Number of Audio Line Out4
Number of Digital Audio Coaxial Output1
Number of Digital Audio Coaxial Input1
Brand NameAuzentech
Form FactorInternal
Sound Channels7.1
Host InterfacePCI
Number of Headphone Ports1
Audio Processor ModelX-Fi CA20K
Audio Processor ManufacturerCreative
ManufacturerAuzentech, Inc
Product ModelPrelude
Product NameX-FI Prelude 7.1 Sound Card
DAC Data Width24 bit
Product LineX-FI
System Requirements
  • Microsoft Windows Vista or Windows XP with Service Pack 2, x64 or Media Center Edition
  • 1GHz Intel Pentium III, AMD or equivalent processor
  • 256 MB RAM (512MB for Windows Vista)
  • 600 MB of free hard disk space
  • Available PCI 2.1 slot
Manufacturer Part NumberAZT-XFPRELUDE
Manufacturer Website Address
Marketing Information

The Auzen X-FI Prelude 7.1 sound card marks the first time Creative has permitted a third-party sound card vendor to use the Creative X-FI chipset in its own sound card design. The Auzen X-Fi Prelude 7.1 sound card will fully support EAX 5.0 and have expandability similar to that of the Auzen X-Meridian 7.1.

Signal to Noise Ratio (SNR)120 dB
Additional Information
  • X-Fi CMSS-3D delivers an amazingly realistic surround sound experience with headphones
  • ASIO 2.0 support at 16-bit/44.1kHz, 16-bit/48kHz, 24-bit/44.1kHz 24-bit/48kHz and 24-bit/96kHz with direct monitoring.
  • Enhanced SoundFont support of up to 24-bit resolution
  • Total Harmonic Distortion + Noise at 1kHz (-3dBFS, A-weighted) : 0.001%