User Guide

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TubeSound Technology
Fusion of P-4 and The Grand Old Vacuum Tube
The AX4B-533 Tube Motherboard is a fusion of the latest Intel Pentium 4 technology with the
century-old vacuum tube for the perfect marriage in audio reproduction. This hot-fusion of technologies
over one hundred years apart has merit of imagination that cannot be denied or taken lightly.
Components and Construction
To ensure a full gaming experience and true tonal quality for music playback, AOpen has
meticulously selected the finest components from the world’s top-rated manufacturers. In fact, AOpen
continues to test components that will further enhance tonal quality as well as overall system reliability
for the user’s total enjoyment.
Every AX4B-533 Tube motherboard is patiently and carefully assembled. They are then inspected
and individually tested by AOpen technicians to meet their desired peak performance. Please refer to
Appendix B for testing methods and equipment.
Noise Isolation
In today’s high-performance digital designs, compatibility, stability
and reliability are crucial. EMC, ….(add more) are also part of the
equation of a successful products. By fusing the Pentium 4 and
vacuum tube circuitry, the geeks of AOpen worked for over weeks
exclusively thinking about how to solve tube-inherent technicality issues
as well as their dreaded by-products – NOISE.
The method we developed back in 1998 in another application, is now working again – this time for this
new hybrid product – The method is called the Frequency Isolation Wall (FIW).