Fosi Audio SK01 Headphone Amplifier & Preamplifier 2 in 1 for Headphone Earphone, Power Amplifier, Active speakers
Audio/IEMs
“With a powerful 2400mW output and a three-band hardware EQ with bypass, the Fosi Audio SK01 offers tactile frequency control and clean amplification for both headphones and preamp duties. Its battery-powered isolated design ensures a low noise floor, making it a versatile and well-built device in the chi-fi audio category.”
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Tactile, immediate frequency adjustment via hardware EQ without software
hifireport.comThree-band hardware equalizer with center-detent tone controls and a one-click PURE bypass provides immediate, tactile frequency adjustment
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Drives demanding high-impedance headphones with real headroom
hifireport.comMaximum output of 2400mW at 32 ohms in high gain mode delivers genuine headroom
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Eliminates mains interference for cleaner noise floor in preamp use
hifireport.comBattery-powered, isolated power design eliminates mains interference from the signal chain
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Durable, premium build quality from full aluminum CNC-machined chassis
hifireport.comFull aluminum CNC-machined chassis provides build quality that routinely surprises buyers
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Loudness function restores fullness at low volumes for late-night listening
hifireport.comloudness function has a particularly devoted group of users who value it specifically for late-night listening at low volumes
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At 290g and 121mm, it’s more transportable than pocket-portable — fine for a bag or desk, but not ideal as a daily commute companion, based on spec analysis.
hifireport.comAt 290g and 121mm, it’s more transportable than pocket-portable — fine for a bag or desk, but not ideal as a daily commute companion, based on spec analysis.