Woo Audio WA8 Eclipse Battery Powered Tube Headphone Amplifier

World's First Battery-powered Tube Headphone Amp

After three years of development and numerous prototypes, Woo Audio's epic WA8 Eclipse is set to knock the audiophile world upon its ear. It's the world's first battery-operated vacuum tube headphone amplifier and features SET Class-A, transformer output for superb, transparent sound quality. Like all Woo Audio products, it offers timeless design and superior build quality.

The WA8 Eclipse is a small amp with DAC that can be transported and set up anywhere with ease, offering desktop-class sonic performance in a small form-factor. Capable of driving demanding high-end headphones of 8-600 ohm impedance, its ultra-low noise circuitry makes it also ideal for use with sensitive in-ear monitors. The premium volume control is precise and feels great.

Advanced Vacuum Tube Design

Despite its small size and easy portability, the WA8 Eclipse boasts an advanced vacuum tube desig. It comes with robust military-grade vacuum tubes, rated for 10,000 hours of life. For versatility in the analog realm, it offers user selectable two-tube or three-tube operation to accommodate in-ear monitors and to tailor the sound quality to different headphones.

The Class A, Single-Ended Triode topology uses premium customized OCC Single Crystal Copper output transformers that are ultra-efficient, offering high bandwidth and low loss.

For digital music lovers, the WA8 Eclipse uses a newly redesigned audiophile-grade ESS SABRE Reference 24/384kHz DAC that excels with Hi-Res music files. The DAC is compatible with both Apple iOS and Android devices with appropriate adapter.

Advanced Battery Technology

The WA8 Eclipse operates via external DC power or 'off-the-grid' battery operation. Advanced battery power technology provides power to the vacuum tubes and the DAC. The rechargeable lithium battery offers several hours of play, and unit is operable during charging.

All of this power and capability is housed in a CNC milled aluminum chassis with a smooth anodized finish available in Black, Space Gray, or Gold. A rugged travel case is included.

Excels at Home or On the Go

The Eclipse offers both digital and analog inputs via a USB interface and a line-level mini-jack. Headphone outputs consist of one mini-plug jack and one 1/4" jack.

The Eclipse's small footprint is perfect for the office. Take with you when you leave for the day, use it around the house, in the bedroom, the living room, in the backyard. Bring it with you on a trip to enjoy at the airport lounge, in a hotel room, or even in your car. It includes a high-quality protective case for storage or travel.

Assembled in Brooklyn, New York, USA

Woo Audio takes great pride in the fact that its products are assembled in Brooklyn, New York, USA from foreign and domestic components.

• The world's first battery-operated vacuum tube headphone amplifier, SET Class-A, transformer output
• Small headphone amp + DAC can be transported and set up anywhere with ease
• Robust military-grade vacuum tubes, rated 10,000 hours of life
• Class A, Single-Ended Triode topology, custom ultra-efficient, high bandwidth, low loss output-transformers
• Customized OCC Single Crystal Copper output transformers
• Audiophile-grade ESS SABRE Reference DAC for Hi-Res Audio playback up to 24-bits/384kHz
• User selectable two-tube or three-tube operation for different headphones / IEMs and for different sonic characteristics
• Desktop-class sonic performance in a small form-factor
• Drives demanding high-end headphones (8-600 Ohms)
• Ultra-low noise for use with sensitive in-ear monitors
• Digital and analog inputs
• DAC is Apple iOS and Android devices compatible (with appropriate adapter cables)
• Easy to set up and pack up
• Timeless design and superior build quality
• Advanced battery power technology to power vacuum tubes and DAC
• Chargeable lithium battery for several hours of play
• Battery operated amp and DAC (not USB bus powered)
• External DC power or 'off-the-grid' battery operation; unit is operable during charging.
• CNC milled aluminum chassis in a smooth anodized finish
• Available in Black, Space Gray, and Gold finish

• Dimension 6.69" long x 3.6" wide x 1.69" deep
• Weight: 2.4 lbs.

"Woo Audio’s innovative WA8 Eclipse headphone DAC/amplifier makes the impossible possible and brings unbridled tube performance to those who refuse to be confined to an immovable desktop system. It packs genuine Class A, SET topology into a transportable, battery-powered and surprisingly versatile device with enough power to drive both high- and low-impedance headphones, a noise-floor that’s quiet enough for sensitive IEMs, and the ability to tune the sound to taste at the flick of a switch. For listeners that favour legato over staccato and atmosphere over accuracy, the beautifully lush, intimate and smooth-sounding Eclipse is guaranteed to woo."

- Richard Barclay, the-ear.net, November 23, 2020

"Beyond its look and feel and even its sound quality, the Woo Audio WA8 Eclipse ($1,799. AU$2,799) exemplifies what separates the best high-end products from mainstream offerings. The WA8 is the sort of design that you'd be proud to own for decades -- it's that good."

- Steve Guttenberg, CNET, April 9, 2016