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Diamond Xtreme External 7.1 USB Sound Card Review

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We all know that testing sound quality can be very subjective, and unfortunately I don't really have any other testing methods at my disposal for testing this card other than comparative listening. I will compare analog and digital playback and recording of the Diamond Xtreme External 7.1 USB sound card to the typical onboard sound card on a desktop. I will also perform a blind test with two other individuals, to eliminate the possibility of the "sugar pill" effect. For audio equipment, I will be using a set of Logitech Z-530 5.1 speakers for analog testing, and a high-end Yamaha RX-A700 7.1 channel receiver equipped with all eight speakers. Each criteria will be evaluated on a scale of 1 to 10, with 10 being superb, and 1 being terrible.


Testing Setup:


Comparison sound card:

  • Integrated Realtek ALC888





  1. Introduction & Closer Look
  2. Closer Look & Installation
  3. Closer Look (The Software)
  4. Specifications & Features
  5. Testing & Setup
  6. Conclusion
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