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Compact silver USB DAC headphone amplifier with multiple output ports

BFKK

BFKK H1 USB DAC Headphone Amplifier 24-bit 140mW

SKU CH-KCGF-KNC5D

A compact 24-bit USB DAC and headphone amplifier delivering 140 mW at 16 ohms with RCA, coaxial, optical, 6.35 mm and 3.5 mm outputs plus treble and bass controls

  • 140mW at 16 ohms drives demanding headphones with authority
  • 24-bit USB DAC upgrades computer audio beyond built-in outputs
  • 95dB signal-to-noise ratio keeps music clean and detailed
  • 5mm, 6.35mm, RCA, optical and coaxial outputs connect any system
  • Integrated de-pop circuit silences start-up and shutdown transients

What it is and who it is for

The BFKK H1 is a USB digital-to-analog converter and headphone amplifier that delivers 24-bit audio to a wide range of headphones. It provides a maximum output of 140mW at 16 ohms and 100mW at 32 ohms, driving loads from 16 to 150 ohms. The unit suits PC, Mac, and PS5 users who want clearer sound than built-in outputs provide.

Practical limits of the USB interface

Audio travels over a mini USB connection compatible with USB 1.1 and 2.0 standards, so bandwidth is limited to those specifications. The device also accepts a line-level analogue input for sources without USB. A built-in de-pop circuit suppresses transients during computer power-up and shutdown, ensuring smooth operation without audible clicks.

Capacity and headroom

The amplifier comfortably handles headphones rated between 16 and 150 ohms, delivering strong volume with a signal-to-noise ratio around 95dB. Outputs include 3.5mm and 6.35mm headphone jacks plus RCA, coaxial, and optical sockets for external systems. It is not for listeners who need balanced outputs, higher power for planar magnetic models, or wireless connectivity.

Highlights

  • 140mW at 16 ohms drives demanding headphones with authority
  • 24-bit USB DAC upgrades computer audio beyond built-in outputs
  • 95dB signal-to-noise ratio keeps music clean and detailed
  • 5mm, 6.35mm, RCA, optical and coaxial outputs connect any system
  • Integrated de-pop circuit silences start-up and shutdown transients

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the 3.5 mm or 6.35 mm output for my headphones?

Use the 3.5 mm jack for portable headphones and the 6.35 mm jack for studio models; both deliver up to 140 mW at 16 ohms and 100 mW at 32 ohms, covering loads from 16 to 150 ohms.

What does the 24-bit rating mean when I play music through this DAC?

It processes 24-bit USB audio streams and outputs analogue sound with a 95 dB signal-to-noise ratio, so quiet passages stay clean and dynamic range is preserved.

The mini USB port says 1.1 and 2.0 — does that limit sample rates?

USB 1.1/2.0 carries standard audio classes; the device accepts USB and line inputs and sends digital audio out through optical and coaxial alongside the analogue outputs.

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