Woo Audio W8 Eclipse Battery Powered Headphone Amp / DAC (on demonstration)


While we do not always stock every product in every finish, we can always put something on order for you! And keep in mind, many products are only available through our... Read more

Color: Black

  • Black
  • Space Grey

While we do not always stock every product in every finish, we can always put something on order for you! And keep in mind, many products are only available through our brick-and-mortar retail store. Give us a ring anytime at 415-614-1118 to place an order or ask us questions, or write to


Woo Audio’s epic WA8 Eclipse is the world's first battery-operated vacuum tube headphone amplifier. Featuring SET Class-A transformer output for transparent sound quality, a built-in 24bit/384kHz DAC, and easy transportability/set-up, high fidelity audio listening is possible anywhere...

With its high power output, the Eclipse is capable of driving high-end headphones of 8–600 ohm impedance, while its ultra-low noise circuitry is ideal for in-ear monitors.

While portable, the Eclipse boasts a robust military-grade vacuum tube design rated for 5,000 hours of life. Versatile in analog and digital realms, it offers two- or three-tube operation to tailor the sound quality to a variety of headphones and in-ear monitors. The Class-A, Single-ended Triode topology uses ultra-efficient OCC single crystal copper output transformers offering high bandwidth and low loss. The Eclipse also uses an audiophile-grade ESS SABRE Reference 24bit/384kHz DAC, excelling with hi-res music files and compatible with Apple iOS and Android devices.

The Eclipse operates via external DC power or "off-the-grid" battery operation. Advanced technology provides steady and pristine power to the vacuum tubes and the DAC, offering several hours of play – and the unit is operable during charging. For the first time, high-fidelity and uncompromised sound can be achieved without boundaries.


Advanced battery power management offers steady and pristine source to both amplifier and DAC
The most compact high power all-tube amp
Premium volume control feels precise and heavy
Transportable size and form-factor, full-sized desktop-class amplifier/DAC performance.
User replaceable vacuum tubes kit available for purchase
Included 12.6v premium quick battery charger
Included Pelican carrying-case (water-resistant, crush-proof and dust-proof). Custom-cut insert foam provides maximum protection.
Included USB 2.0 cable
Multi-layer military grade PCBs
Driver for Windows Vista/XP/7/8/10
USB Audio Class 2.0 is natively supported by Apple OS X version 10.6.4 and above


All-tube design (not hybrid)
Class-A, Single-ended Triode transformer-coupled
Tubes 6S31B x2, 6021 x1
Selectable two- or three-tube operation
In-house Nickel core, OCC Single Crystal Copper output transformer
Frequency response: 20Hz – 30kHz, -3dB
Max headphone output 350mW
ESS SABRE Reference DAC (ES9018K2M)
XMOS xCORE-AUDIO asynchronous USB compatible with Mac, PC, Android and iOS devices
Hi-res music playback up to 24-bit/384kHz
USB (Type-B) digital input, and 1/8" (3.5mm) analog input
1/4” (6.3mm) and 1/8” (3.5mm) headphone outputs (8-600 Ohms)
Up to 4 hours of battery playtime, 3400mAh rechargeable Lithium-ion battery
Five LED battery indicators
CNC-milled aluminum enclosure, available in anodized black, space gray, and gold
Dimension 6.69" (L) x 3.6" (W) x 1.69" (D) / 170mm (L) x 92mm (W) x 43mm (D)
Weight (amp) 2.4lbs / 1.09kg

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