User Guide

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Amplification Circuitry
After studying many classic pre-amplifier circuits, we decided to use a single dual-triode (one tube
with stereo channel), as a main amplification device. By complying with many criteria, we also decided to
follow a long path in terms of providing the most faithful, yet economical way, of doing the signal
amplification – Direct Path. In this design, a straightforward amplification is achieved without numerous
coupling devices that could add coloration to the music.
Following is a basic circuit of cathode stage, fully-bypassed cathode implemented in AX4B-533 Tube
for your reference; for intellectual property issue, we reveal it in a simple way instead of a
detailed circuit diagram.
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