Description
Woo Audio WA2 (OTL Design) Headphone Amplifier
Overview
Handcrafted since 2004, the critically acclaimed WA2 is a high performance OTL (Output Transformerless) headphone amplifier. WA2 is a Class-A, all-tube design, single-ended triode (SET) with point-to-point wiring to achieve the most analog sound. Music lovers with high impedance headphones (above 100 Ohms) would find WA2 to be the ideal pairing for their high-end headphones.
Highlights
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Tubes: 6080 power x 2, 6922 driver x 2, 6CA4 rectifier x 2
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Polytetrafluoroethylene (PTFE) tube sockets
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Single-ended Triode, Class-A
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OTL (output transformerless), Point-to-Point wiring
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Individual filter choke and rectifier per channel
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Pseudo-dual power supply
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RCA input x 4
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1/4″ (6.3mm) stereo headphone output
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ALPS potentiometer and power switch
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Anodized aluminum chassis, available in black or silver
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Self-biasing with compatible tubes [chart]
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Global voltage (100v–220v) without converter
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Dimensions: 5½”(H), 13″(W), 9″(D), 17 lbs.
In the box
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Quick start guide
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WA2 headphone amplifier x 1
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6922 vacuum tube x 2
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6080 vacuum tube x 2
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6CA4 vacuum tube x 2
*AC power cord and audio cables are not included
Specifications
Colors: Black, Silver
Headphone Impedance: 26-600 Ω
Input Impedance: 100 kΩ
Frequency Response: 8 Hz – 100 kHz -3 dB
Signal/Noise: 95 dB
THD: <= 0.08%
Pre-Amp Gain: 10 dB
