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The Fosi Audio GR70 is a high-fidelity tube headphone amplifier designed for audiophiles seeking rich, warm sound with both headphone and preamp output capabilities. Featuring premium vacuum tubes and a dual-mode output, it enhances audio detail and dynamics across various headphone types and audio sources.
Fosi Audio GR70 Tube Headphone Amplifier and Preamp
The Fosi Audio GR70 is built to elevate headphone listening with the signature warmth of vacuum tube amplification. It offers dual headphone outputs (3.5mm and 6.35mm), making it compatible with a wide range of headphone impedances from 16 to 300 ohms. A mode switch allows easy toggling between headphone amp and preamp functions, adding flexibility to integrate with powered speakers or stereo systems. The GR70’s compact aluminum design and minimal distortion circuitry ensure clean, immersive playback, while the easy tube-swapping design lets users experiment with different sound signatures. This unit is ideal for desktop audiophiles looking for a compact yet powerful analog upgrade.
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Streamers
Woofers
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Exciters
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Plaatversterkers
Versterker modules
Single board computers
Geassembleerde crossovers
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Spoelen
Circuit Breakers
Crossover tools
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DIY versterker kits
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