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WooAudio WA33 Balanced Headphone Amplifier / Black
The WA33 is a fully balanced headphone amplifier that attempts to raise the bar in reference music reproduction. It features a quad of 6C45 tubes for the driver that pushes a quad of 2A3 tubes for the power in an all-tube design. The amplifier also has an independent power supply. This approach eliminates any interference to critical audio components. In addition, the Internal Coupling Architecture (ICA) technology allows the WA33 amplifier to merge with the power supply without an external cord. The ICA shortens the signal path resulting in a significant reduction of unwanted electrical interference and raises sound performance to a level beyond expectations. The WA33 reproduce details with refinement. Any complex music is handled with precision. It reproduces music with expansive soundstage, holographic imaging and rich tones that are nature and create a sense of realism making the music come to life.
- Fully Balanced Direct-Heated Triode
- Point-to-Point wiring
- Internal Coupling Architecture
- Amplifier unit mounted to power supply
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Technical Specification
- Type: Balanced Headphone Amplifier
- Tube Complement: 2A3 power tubes, 6C45 driver tubes, 5U4G rectifier tubes
- Two XLR inputs, one RCA input
- One XLR preamp output
- Headphone outputs: 6.3mm, 4-pin XLR, dual 3-pin XLR
- Headphones impedance : 8—600 Ohms
- Frequency response: 10Hz— 60kHz, -2dB
- Preamp maximum output: 10V + 10V balanced
- Preamp output impedance: 50 ohms
- Power output: up to 10 watts per channel
- Signal/Noise: > 95 dB
- THD: < 0.05%, 1kHz
- Voltage: AC 120/240V, 50/60 Hz
- Weight: 22.7kg
- Warranty: 1 Year
What Is In The Box
- WooAudio WA33
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Manufacture Description
WA33 Fully Balanced Headphone and Pre Amplifier
All-tube Design, Class-A
Output Transformer Coupled
In 2009, we introduced two world-class fully balanced headphone amplifiers – the WES electrostatic amp and the WA22 dynamic amp. Both are preferred choices among the most discerning audiophiles. Here at Woo Audio, we have been constantly push the performance boundaries. The newly developed WA33 is a state-of-the-art fully balanced headphone amplifier that raises the bar in setting a new reference in music reproduction.
The WA33 employs a true fully balanced design in a compact form factor, featuring a quad of 6C45 tubes for the driver that pushes a quad of 2A3 tubes for the power, in an all-tube design. It delivers high power to drive demanding headphones to their full potential while maintaining a low noise floor for use with highly sensitive models. The WA33 shares the same striking appearance of the critically acclaimed WES where both amplifier units are independent of the power supply. This approach eliminates any interference to critical audio components. Additionally, our internal coupling architecture (ICA) technology allows the WA33 amplifier to merge with the power supply unit without an external umbilical cord. The ICA shortens the signal path and thus significantly reduces unwanted electrical interference and raises sound performance to a level beyond what anyone has experienced in a headphone system.
The WA33 reveals the most delicate detail with the highest level of refinement. Complex music passages are handled with ease and authority. The expansive soundstage, holographic imaging, and rich tones that are pristine, natural, and vivid create a sense of realism that gives the user a euphoric listening experience. With the WA33, music comes to life.