WA6-SE (2nd gen) vs Unison Research SH
The SH's thd is 0.200% against the WA6-SE (2nd gen)'s 0.300%, its input impedance 20Ω against 100Ω, its class A against Tube, and its weight 6 kg (13 lbs) against 5.44 kg (12 lbs).
AI-generated product photo — not official manufacturer imagery.
AmplifiersHeadphone AmplifiersTube Amplifiers
Estimated price (community-sourced)
$1,059 - $1,649
Around — community and catalog average, updates slowly
About the WA6-SE (2nd gen)
The Woo Audio WA6-SE (2nd gen) is a premium, all-tube headphone amplifier featuring a dual-chassis design with a dedicated power supply for improved sonic performance. Hand-assembled in New York, the WA6-SE employs point-to-point wiring, Class-A single-ended triode (SET) topology, and transformer coupling to deliver a rich, dynamic tube sound. It is capable of driving most dynamic and planar magnetic headphones from 8 to 600 Ohms, making it highly versatile for audiophiles with diverse headphone collections. The amplifier uses two 13DE7 driver/power tubes and a 5U4G rectifier tube, with high-quality PTFE tube sockets and an anodized aluminum chassis available in black or silver. The WA6-SE offers dual 1/4" headphone outputs (high/low impedance), two RCA inputs, and global voltage compatibility. Its robust build and refined sound make it a standout choice for discerning headphone listeners.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 2W @ 8Ω
- Amplifier Class
- tube
- Input Impedance
- 100Ω
Analog Output
Analog signal output specifications
- THD
- 0.300%
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA
- Analog Outputs
- 1/4" (6.3mm) stereo headphone jacks
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 139.7 × 152.4 × 330.2 mm (W × H × D)
- Weight
- 5.44 kg (12 lbs)
- Available Colors
- black, silver
Key Specifications
Power: 2W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions