Fosi Audio SK01: Headphone amplifier and preamplifier with battery

Fosi Audio SK01 is a new headphone amplifier with battery. RMS output power is up to 2400mW@32Ω. It has a volume control and a tone control.
Covering all your hi-fi needs

Can a tiny box do all this? Testing the Fosi Audio SK01 headphone amp, preamp, EQ

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Fosi Audio SK01 - Reviews Headphone Reviews and Discussion

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Fosi Audio SK01 Headphone Amplifier & Preamplifier

1x Fosi Audio Sk01 Headphone Amp. The high and low gain settings are suitable for headphones with different impedance. The bypass mode provides a pure

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Fosi Audio SK01 Headphone Amplifier & Preamplifier

Fosi Audio SK01: Headphone amplifier and preamplifier with battery