- 【Fully balanced headphone amplifier】Adopting fully balanced amplifier circuit and innovative circuit design, the amplifier circuit of U5 always works at a high voltage of 24V even if input DC 5V, with wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.
- 【Easily to drive low or high impedance headphones】For a total power output of up to 1400mW under a 32Ω load, U5 can easily power headphones with any low or high impedance (18-600Ω). Volume knob allows you to smoothly adjust volume without any undesirable noise nor any channel imbalances.
- 【Pure analog design to reproduce music truly】Pure analog amplification circuit and analog control, show you the truest sound, all aspects are in the top-class such as sound field, sound position, details etc.. Adopt original JRC4580 classical op amp, pluggable socket design, convenient to upgrade different op amps to enjoy other sound styles.
- 【Most cost-effective amp on the market】Mini size and exquisite appearance, and with low distortion, high power and a pure, uncolored sound, you’ll experience subtle details and shocking swings in your music effortlessly. U5, the best helper for all xlr/4.4mm headphones to improve their sound quality.
- Audio input: stereo L/R XLR ( 3-core, female)
- Audio output: XLR ( 4-core, female) / 4.4mm
- Output power: ≥1400mW (32Ω)
- Matched headphone impedance: 18-600Ω
- Frequency response: 20-30KHz
- Signal to noise ratio: ≥110DB
- THD: 0.005%
- Input voltage: DC 5V (recommend above 1A)
- Dimension(W*D*H): 68*69*28mm / 2.68*2.72*1.50in
- Net weight: 149g / 0.33lb
- Package weight: 500g / 1.10lb
- U5 Headphone Amplifier ×1
- USB to DC Cable ×1
Warm tips
Without DC 5V power adapter, you can use your phone charger, input over 5V will result in damage.


Douk Audio U5
XLR Balanced Headphone Amp
Experience pure analog sound with the Douk Audio U5 Mini, a compact fully balanced headphone amplifier. Delivering up to 1400mW power, it effortlessly drives headphones of any impedance (18-600Ω). With a wide frequency response and low distortion, the U5 Mini enhances your audio experience with its high-quality, transparent sound reproduction.

Fully balanced headphone amplifier
- Support stereo L/R XLR input
- DC 5V input. Can be powered by 5V phone charger or power bank

Easily to drive low or high impedance headphones
- Support XLR / 4.4mm headphone output
- Can offer up to 1400mW under a 32Ω load and can suit 18-600Ω headphones

Integrated volume control & power switch
- Volume knob allows you to smoothly adjust volume without any undesirable noise nor any channel imbalances

Pure analog design to reproduce music truly
- Adopt original JRC4580 classical op amp, pluggable socket design, convenient to upgrade different op amps