Woo Audio
Woo Audio WA5
Best dual-purpose tube amplifier for high-end headphone and speaker enthusiasts.
The Woo Audio WA5 (2nd generation) is a highly regarded stereo tube amplifier that has set a benchmark for 300B-based designs since 2008. It features separate, discrete amplification sections for both speakers and headphones, ensuring top performance in either configuration. The power supply is divided into distinct units to maintain signal purity. Advanced output switching allows effortless selection between speaker and headphone outputs. It is ideal for high-efficiency speakers and demanding dynamic or planar headphones. The front panel offers user-customizable headphone outputs, optimizing synergy with various headphone models.
$6499.00
More WA5 Options
Owner Satisfaction
4.6
/ 5
Category Rank
229
/ 766
#229 in Headphone Amplifiers
Price vs Category Average
+365%
Above average
Tubes
6723002542
/ SN x , B x , UG x
Who it's for
- Audiophiles seeking an immersive and highly detailed listening experience
- Headphone collectors needing versatile power for diverse gear
- Design enthusiasts who value premium build quality and aesthetics
Who should skip it
- Budget-conscious buyers looking for entry-level audio solutions
- Users preferring low-maintenance, cool-running solid state equipment
- Desktop users with limited space for large audio components
Performance breakdown
Sonic Transparency
The 300B triode design delivers unparalleled clarity and harmonic richness.
Headphone Versatility
Customizable impedance and power settings masterfully drive any headphone load.
Build Integrity
Dual-chassis construction and premium internal components ensure lasting audiophile performance.
Speaker Drive Capability
Pairs beautifully with high-efficiency speakers for an intimate, room-filling sound.
Signal Purity
Isolated power supply units effectively eliminate noise for a silent background.
Ergonomic Control
The smooth ALPS potentiometer offers precise, tactile volume adjustment.
Key Specs
Tubes
6SN7 x 2, 300B x 2, 5U4G x 2
PTFE tube sockets
Single-ended triode, Class A
Transformer-coupled point-to-point wiring
Pseudo-dual power supply, dual chassis design
Premium audiophile-grade internal parts upgrade including Mundorf MCap Supreme Silver/Gold coupling caps, Mundorf MLytic HV electrolytic capacitors
WBT Nextgen speaker binding posts and RCA
User-selectable headphone power HI/LO
Features
- Dual-purpose design for both speakers and headphones
- Discrete amplification sections for optimal performance
- User-customizable headphone output settings (power, impedance, level)
- High-quality internal components for superior sound
- Premium WBT Nextgen speaker binding posts and RCA connectors
- Smooth ALPS potentiometer for precise control
- Durable anodized aluminum chassis
- Global voltage compatibility for worldwide use
What customers say
Customers consistently laud the Woo Audio WA5 for its exceptional build quality and sophisticated design. Reviewers frequently highlight the amplifier's robust construction and premium aesthetic, often describing it as a work of art. The primary theme, however, revolves around its unparalleled sound performance. Users report an incredibly rich, detailed, and immersive audio experience, noting its ability to elevate high end headphones to new sonic heights. This amplifier is celebrated for delivering a warm, expansive, and natural sound signature that captivates listeners, making it a cherished centerpiece for serious audiophiles.
Know before you buy
The WA5 features discrete amplification sections for both speakers and headphones, but it is designed to output to only one source at a time. You can easily toggle between your speakers and headphones using the front-panel output selector.
The WA5 includes user-selectable impedance settings (HI/LO) to ensure optimal synergy with your specific headphone model. Generally, use the LO setting for low-impedance headphones and the HI setting for high-impedance models, though you should experiment with both to see which provides the best dynamic range and control for your specific gear.
Yes, the WA5 consists of two separate units—the amplifier and the power supply—each measuring 12" x 9" x 17". You will need a sturdy rack or shelf space that can accommodate both units side-by-side or stacked, keeping in mind that you must allow for adequate ventilation for the tubes.
Yes, the WA5 features global voltage compatibility, allowing it to operate on power grids ranging from 100v to 240v. This makes it a versatile choice for international audiophiles without the need for external voltage converters.
As a Class A single-ended triode amplifier, the WA5 relies on vacuum tubes that will eventually require replacement based on usage hours. The unit features autopolarization for compatible tubes, which simplifies the process, but you should be comfortable with the occasional need to source and swap matched sets of 6SN7, 300B, and 5U4G tubes.
Yes, the WA5 is equipped with one XLR input for balanced sources and two RCA inputs for unbalanced connections. This allows you to connect multiple components simultaneously and switch between them as needed.
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$6499