Fosi Audio SK01 Kopfhörerverstärker und Preamp

Delivered between Wed, 10.9. and Thu, 25.9.
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Product details

Whether as a powerful headphone amplifier, customizable analog preamplifier, or acoustic equalizer for your instrument – the Fosi Audio SK01 effortlessly enhances your listening experience, delivering exceptional sound quality and personalized sound signatures. With the ability to adjust treble, midrange, and bass, achieving the most suitable sound profile is easily attainable. In high-impedance mode, up to 2400 mW of power is available. Instant restoration of the original sound is possible with the one-click tone-defeating button. Adjust the gain level to accommodate headphones with different impedances via the gain stage switch. The aluminum alloy casing showcases meticulous attention to detail. The built-in 2500 mAh battery provides up to 6 hours of battery life. Versatile connectivity is offered through the 3.5 mm and 6.35 mm headphone jacks (32 - 300 Ohms). The SK01 is well-suited for both portable and desktop headphone amplification.

Key specifications

Power supply
Rechargeable battery operated
Item number
59881671

General information

Manufacturer
Fosi Audio
Category
Headphone amplifiers
Manufacturer no.
SK01
Release date
1.7.2025

Colour

Colour
Black
Exact colour description
Black

Power supply

Power supply
Rechargeable battery operated
Battery life
6 h

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
2-in1 USB-A/C to USB-C cableManual

Product dimensions

Length
121 mm
Width
51 mm
Height
43 mm

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Headphone amplifiers» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Fosi Audio
    Not enough data
  • 1.Mackie
    0.7 %
  • 2.FiiO
    2.4 %
  • 3.iFi Audio
    3.8 %
  • Behringer
    Not enough data

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Fosi Audio
    Not enough data
  • 1.FiiO
    0 days
  • 2.iFi Audio
    8 days
  • Behringer
    Not enough data
  • Mackie
    Not enough data

Return rate

How often is a product of this brand in the «Headphone amplifiers» category returned?

Source: Digitec Galaxus
  • Fosi Audio
    Not enough data
  • 1.Behringer
    0.5 %
  • 2.Mackie
    1.3 %
  • 3.FiiO
    5.9 %
  • 4.iFi Audio
    8.3 %
Source: Digitec Galaxus