Based on the analysis of vacuum tube slight variation equivalent circuit, a headphone amplifier is designed to drive high fidelity headphone.

以电子管微变等效电路分析为基础，设计了一款以驱动高保真耳机为目的的耳机放大器。

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The vacuum tube amplifier can also be found in Samsung's home theater systems, beginning with the HT-F6500W, for improved audio clarity and warmth.

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These electrostatic headphones with a vacuum tube amplifier, which came onto the market around 20 years ago, have become an icon in the audio world.

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Samsung's Vacuum Tube Soundbar (model HW-F750) resolves consumers' desire for pure power and warm, natural sound by integrating a vacuum tube amplifier into a soundbar for the first time.

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