Woo Audio WA8 Eclipse

Battery-operated Headphone Amplifier & DAC

WA8 Eclipse battery-operated amp/DAC
Beyond its look and feel and even its sound quality, the Woo Audio WA8 Eclipse exemplifies what separates the best high-end products from mainstream offerings. - Steve Guttenberg.

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 pristin 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

 USB drivers for Windows XP/Vista/7/8/10, or here usb logo

Owner's Manual(PDF) pdf-icon

An engineering marvel that achieves desktop-class amplifier/DAC performance while retaining transportability (size compared to WA7).

 $1799 / $1899  with free CONUS shipping

*Vacuum tubes are user replaceable. We will sell tube kit with instructions in the near future.

Genuine leather case: $149

Proudly mady by Woo Audio. Your trusted supplier for quality audio components.

Built upon Woo Audio's accumulated expertise in vacuum tubes amplifier design

Military grade sub-miniature tubes, lifespan in excess of 5000 hours

Military grade sub-miniature tubes, lifespan in excess of 5000 hours

Digital USB input and analog input for flexible connectivity

Digital USB input and analog input for flexible connectivity

Powerful headphone amp with an advanced hi-res DAC

Powerful headphone amp with an advanced hi-res DAC, drives any in-ear monitors and dynamic headphones.

Included a sturdy Pelican protection case Premium leather case offered as an accessory

Included: Pelican protection hard case

Optional accessory: Premium leather travel case

Available in black, space gray, and gold

WA8 Eclipse in black WA8 Eclipse in Space Gray WA8 Eclipse in black

Accepts high-resolution audio through USB port

Accepts high-resolution music through USB port

Minimalist audiophile playback system

Minimalist audiophile playback system

Easy to setup, enjoy high fidelity sound anywhere

Elegance meets performance

Easy to setup, enjoy high fidelity sound anywhere

Easy to setup. Enjoy high-fidelity sound anywhere