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Woo Audio
Woo Audio TUBE mini USB DAC/amplificador (caixa aberta) [Full Warranty]
Best portable tube amplifier for audiophiles seeking high-fidelity sound on-the-go.
Experience powerful, pristine sound on the go with the ultra-portable Woo Audio TUBE mini DAC/headphone amplifier. This compact device integrates traditional vacuum tubes with Mighty-Drive MOSFET technology, delivering effortless audio performance ideal for demanding, high-impedance headphones. It features an internal ESS SABRE DAC supporting high-resolution formats and is conveniently powered directly via USB bus. This specific unit is an open-box item, confirmed to be like-new, and includes the full three-year limited Woo Audio warranty, offering premium tube magic in a pocket-friendly design.
$449.10
Owner Satisfaction
4.7
/ 5
Category Rank
53
/ 766
#53 in Headphone Amplifiers
Price vs Category Average
-68%
Below average
Maximum power output
18
/ W @ Ohms
Who it's for
- Audiophiles seeking a rich and musical listening experience
- Budget-conscious buyers wanting premium gear with full protection
- Commuters and desktop users needing a compact, all-in-one solution
Who should skip it
- Users preferring low-maintenance gear without recurring upkeep costs
- Owners of power-hungry, high-impedance planar magnetic headphones
- Minimalists sensitive to heat in cramped workspace environments
Performance breakdown
Drive Capability
Hybrid MOSFET design handles high-impedance headphones with surprising authority and ease.
Portability
Pocket-sized chassis delivers desktop-grade tube warmth anywhere you travel.
Sonic Character
Vacuum tubes provide a lush, organic texture missing from standard digital gear.
Resolution Support
ESS SABRE DAC handles high-res PCM and DSD files with clinical precision.
Build Quality
Anodized aluminum construction feels premium and built to withstand daily commutes.
Ease of Use
Plug-and-play USB power eliminates the need for bulky external battery packs.
Key Specs
Maximum power output
1W @ 8 Ohms
DAC Support
Up to 24-bit/384 kHz PCM and DSD256
Frequency Response (amp)
20 Hz - 46 kHz (-3dB)
Signal-to-Noise Ratio
100dB
Outputs
4.4 mm balanced 'Pentaconn' and 3.5 mm unbalanced
Dimensions
107 mm x 35 mm x 7 mm (L, A, P)
Weight
49 g
Chassis Material
Anodized aluminum
Features
- Ultra-portable vacuum tube DAC/headphone amplifier
- Hybrid tube and MOSFET amplification
- Vibration-reducing tube suspension
- High-resolution lossless DAC built-in
- Plug-and-play USB bus power
- Drives demanding headphones easily
- Designed and assembled in New York, USA
- Compact, anodized aluminum chassis
What customers say
Customer enthusiasm for the Woo Audio TUBE mini USB DAC/amplifier, especially open box with a full warranty, centers on its exceptional sound quality and value. Users consistently praise the device for delivering genuine tube warmth, rich harmonics, and musicality, transforming digital audio into a lush listening experience. Its compact size belies a robust power output capable of driving demanding headphones, making it highly versatile. The combination of premium build quality and superior sonic performance at a reduced entry price point generates strong positive value perception. While the unit can run warm, this is accepted as a minor trade-off for achieving authentic, high-fidelity tube sound.
Know before you buy
No, the TUBE mini is powered directly via its USB-C input. It draws power from your connected device, making it a true plug-and-play solution for mobile setups.
Yes. By combining traditional vacuum tubes with Mighty-Drive MOSFET technology, it is designed to handle demanding headphones with ease, delivering up to 1W of power at 8 Ohms.
An open-box unit has been previously unboxed but is confirmed to be in like-new condition. You receive the exact same three-year limited warranty as a brand-new unit, ensuring full peace of mind.
The device features two outputs: a 4.4 mm balanced 'Pentaconn' jack for high-fidelity connections and a standard 3.5 mm unbalanced jack for compatibility with most consumer headphones.
The integrated ESS SABRE DAC supports high-resolution audio up to 24-bit/384 kHz PCM and DSD256, allowing you to play back lossless files with excellent clarity.
The internal suspension system is engineered to isolate the vacuum tubes from physical shocks and vibrations. This helps maintain signal integrity and prevents microphonic noise during portable use.
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