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  • 2 VIDEOS
  • Douk Audio U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Class A, RCA Input, DC 5V
  • Nobosund & Douk AudioDoukAudio

Douk Audio U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Class A, RCA Input, DC 5V

4.4 out of 5 stars (774)
鶹's Choice highlights highly rated, well-priced products available to ship immediately.
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About this item

  • Adopting innovative circuit design, DC 5-20V wide input working voltage, the amplifier circuit can always work at a high voltage of 26V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.
  • Adopting original TI-NE5532 classical op amp and transistor expanding current circuit, using 1300mA large current output transistor working in class A status, with ultra-low distortion, and the sound is warm and delicate, full and mellow.
  • Pluggable op amp socket design, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. Smooth and mellow sound, suitable for listening to vocals or string music, classic or pop music, and even with unique charm when playing rock.
  • Mini size with exquisite appearance and most cost-effective, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home/office desltop audio system use.
  • With strong drive power, easily to drive most high-impedance headphones such as: HD580/HD600/HD650/K701/K702/Q701/DT880/T70/T90/SR225/SR325/RS1e
› See more product details

Product Description

douk audio u3 headphone amp

Product Highlights

headphone amplfier

Strong headphone drive power

  • Can drive most high-impedance headphones such as: HD580/HD600/HD650/K701/K702/Q701/DT880/T70/T90/SR225/SR325/RS1e

NE5532

Replaceable TI-NE5532 OP AMP

  • Adopting original TI-NE5532 classical op amp and transistor expanding current circuit
  • Ultra-low distortion, warm and delicate sound, full and mellow
  • Pluggable op amp socket design, convenient to upgrade different op amps

super mini size

Super mini size

  • Mini size with exquisite appearance can be hold by one hand

circuit board

Innovative circuit design

  • DC 5-20V wide input working voltage
  • Innovative amplifier circuit can always work at a high voltage of 26V

Douk Audio U3

Packing List
Packing List
  • 1*U3 Headphone Amplifier
  • 1*USB to DC Cable
  • 1*6.35mm to 3.5mm Headphone Adapter

Douk Audio U3

Parameters

  • Audio input: stereo L/R RCA
  • Audio output: 6.35mm headphone jack (with 6.35mm to 3.5mm adapter)
  • Output power: ≥1300mW (32Ω)
  • Matched headphone impedance: 18-600Ω
  • Frequency response: 20-30KHz
  • Signal to noise ratio: ≥110ٵ
  • Max output amplitude voltage: 25V
  • Input voltage: DC 5-20V

  • Dimension(W*D*H): 67*93*30mm / 2.64*3.66*1.18in
  • Net weight: 169g / 0.37lb
  • Package weight: 210g / 0.68lb

Panel Introduction

Panel Introduction
Douk Audio U3
Nobsound NS-08E
Douk Audio P1
Douk Audio T3 PLUS
Douk Audio Q3
Little Bear B4-X
Buying Options
Buying Options
Customer Reviews
4.4 out of 5 stars 774
4.0 out of 5 stars 688
4.1 out of 5 stars 981
4.3 out of 5 stars 11
3.8 out of 5 stars 21
3.7 out of 5 stars 183
Type Digital Headphone Amplifier Vacuum Tube Headphone Amplifier Bluetooth Tube Preamp & Headphone Amplifier Phono Tube Preamp & Headphone Amplifier DAC + Headphone Amplifier Portable Vacuum Tube Headphone Amplifier
Input RCA 3.5mm AUX Bluetooth 5.0 (APTX-HD) + USB + RCA MM/MC Phono + 3.5mm AUX PC-USB + Optical + Coaxial 3.5mm AUX
Output 6.35mm AUX (with 6.35mm to 3.5mm adapter) 3.5mm AUX RCA + 3.5mm AUX RCA + 3.5mm AUX (can output at the same time) RCA + 3.5mm AUX 3.5mm AUX + 2.5mm (Balanced)
Output Power ≥1300mW (32Ω) ≥1100mW (32Ω) ≥160mW (32Ω) ≥130mW (32Ω) ≥100mW (32Ω) ≥450(32Ω)
Headphone Impedance 18-600Ω 18-600Ω 32300Ω 32300Ω 16200Ω 16300Ω
Frequency Response 20-30KHz 20-30KHz 20-20(±3) 20Hz-20KHZ(-1dB) 20-20(±3) 20-30KHz
SNR ≥110ٵ ≥110 dB ≥103 ≥100 ≥105 ≥110ٵ
Power Input DC 5-20V DC 6V DC 12V DC 12V DC 5V Rechargeable Battery
Nobsound NS-10P
Douk Audio SE
Douk Audio U2
Douk Audio L1
Little Bear MC102
Nobsound NS-14G PRO
Buying Options
Buying Options
Buying Options
Buying Options
Buying Options
Customer Reviews
3.9 out of 5 stars 364
3.7 out of 5 stars 922
3.8 out of 5 stars 280
4.0 out of 5 stars 294
3.7 out of 5 stars 677
—
Type Vacuum Tube Preamplifier Bluetooth 5.0 Stereo Power Amplifier (100W) USB to Toslink Digital Interface Line Level Booster 2(1)-IN-1(2)-OUT 3.5mm Audio Switch 2.1-CH Bluetooth 5.0 Power Amplifier (100W+50Wx2)

Product information

Technical Details

Brand ‎Douk Audio
Place of Business ‎ShenZhen, GuangDong 518110,CN
Model ‎XZ-U3
Part Number ‎XZ-U3
Tuner Technology ‎DAB
Batteries included ‎No
Batteries Required ‎No
Connector Type ‎auxiliary, usb
Mounting type ‎Freestanding
Item model number ‎XZ-U3
Parcel Dimensions ‎13.1 x 9.6 x 8.8 cm; 167.83 g
ASIN ‎B08C2MKBGN

Additional Information

Date First Available July 31 2020
Customer Reviews
4.4 out of 5 stars (774)

4.4 out of 5 stars
鶹 Rank

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Douk Audio U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Class A, RCA Input, DC 5V

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Product details

  • Parcel Dimensions ‏ : ‎ 13.1 x 9.6 x 8.8 cm; 167.83 g
  • ASIN ‏ : ‎ B08C2MKBGN
  • Item model number ‏ : ‎ XZ-U3
  • Customer Reviews:
    4.4 out of 5 stars (774)
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Product Summary: Douk Audio U3 Headphone Amps, Mini Hi-Fi Amplifier for Home Desktop PC 6.35mm / 3.5mm Headsets, Class A, RCA Input, DC 5V

From Douk Audio

4.4 out of 5 stars, 774 ratings

Customer reviews

Price

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Other sellers

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About this Item

  • Adopting innovative circuit design, DC 5-20V wide input working voltage, the amplifier circuit can always work at a high voltage of 26V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.
  • Adopting original TI-NE5532 classical op amp and transistor expanding current circuit, using 1300mA large current output transistor working in class A status, with ultra-low distortion, and the sound is warm and delicate, full and mellow.
  • Pluggable op amp socket design, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles. Smooth and mellow sound, suitable for listening to vocals or string music, classic or pop music, and even with unique charm when playing rock.
  • Mini size with exquisite appearance and most cost-effective, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home/office desltop audio system use.
  • With strong drive power, easily to drive most high-impedance headphones such as: HD580/HD600/HD650/K701/K702/Q701/DT880/T70/T90/SR225/SR325/RS1e

Product description

Warm tips:Not inlcude power adapter, recommend to use original high-quality power adapter above 5W. For example: the current should be above 1A if use DC 5V while need above 0.5A if use DC 12V power adapter. Parameters: Audio input: stereo L/R RCA Audio output: 6.35mm headphone jack (with 6.35mm to 3.5mm adapter) Output power: ≥1300mW (32Ω) Matched headphone impedance: 18-600Ω Frequency response: 20-30KHz Signal to noise ratio: ≥110ٵ Max output amplitude voltage: 25V Input voltage: DC 5-20V Dimension(W*D*H): 67*93*30mm / 2.64*3.66*1.18in Net weight: 169g / 0.37lb Package weight: 210g / 0.68lb Packing List: 1*U3 Headphone Amplifier 1*USB to DC Cable 1*6.35mm to 3.5mm Headphone Adapter
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