| Power Output: |
24W Pure Class A |
| Tube Configuration: |
WE6SN7 (Voltage Gain), 300B (Driver Tube), 845 (Final-Stage Tubes) |
| Frequency Response: |
Broad and immersive soundstage |
| Negative Feedback: |
Adjustable between 0 dB and -3 dB |
| Controls: |
Potentiometers on top panel, remote control operation |
| Construction: |
Robust design with toroidal transformer and solid iron core |
| Weight: |
Approximately 37 kilograms |
| Tube-Friendly Features: |
Soft-start on-delay for high-voltage power supply |


What Our Experts Think
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Unmatched Audio Quality: The Cayin HA-300MK2 Vacuum Tube Headphone Amplifier excels in providing audiophile-grade sound with its pure Class A, tube-driven design, offering a rich, warm, and detailed listening experience.
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Precision Engineering: Built with precision, the HA-300MK2 incorporates high-quality components like premium vacuum tubes to ensure the highest fidelity in audio reproduction, making it ideal for discerning listeners.
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Versatile Headphone Compatibility: Whether you have high-impedance or low-impedance headphones, this amplifier handles a wide range of headphone types with ease, delivering optimal performance for each.
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Exquisite Design: The sleek, minimalist aesthetic with premium materials not only enhances the amplifier’s visual appeal but also contributes to better sound quality by minimizing vibrations and interference.
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Powerful Output: The HA-300MK2 offers ample power, delivering a dynamic soundstage with rich, deep bass, clear mids, and sparkling treble, perfect for those seeking the ultimate headphone audio experience.
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Smooth Volume Control: Its tactile volume control provides precise adjustments, ensuring a smooth and controlled listening experience, while the headphone output delivers excellent sound quality without distortion.
Q&A
Q: What type of amplifier is the Cayin HA-300MK2?
A: The Cayin HA-300MK2 is a high-end vacuum tube headphone amplifier, designed to deliver exceptional sound quality for audiophile headphones.
Q: Which tubes does the HA-300MK2 use?
A: It uses 300B power tubes, renowned for their natural, detailed sound and ability to drive high-impedance headphones with ease.
Q: What is the power output of the Cayin HA-300MK2?
A: The HA-300MK2 provides 8 watts per channel, offering powerful and distortion-free sound for even the most demanding headphones.
Q: Is the HA-300MK2 suitable for high-impedance headphones?
A: Yes, with its high output power and tube design, the HA-300MK2 is ideal for driving both low and high-impedance headphones.
Q: What are the key features of the Cayin HA-300MK2?
A: The HA-300MK2 features a refined tube design, balanced inputs and outputs, a premium build quality, and high power output, delivering an immersive and dynamic listening experience
Maintenance Tips
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Tube Inspection: Regularly check the vacuum tubes for any signs of wear or damage. If the sound quality diminishes or tubes become discolored, it may be time to replace them.
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Clean the Surface: Wipe the amplifier with a soft, dry cloth to keep the exterior free from dust and fingerprints. Avoid using harsh chemicals or abrasive materials.
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Ventilation: Place the amplifier in a well-ventilated space to prevent overheating, as tube amplifiers generate heat during use.
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Allow Warm-Up Time: Before listening at high volumes, allow the amplifier to warm up for a few minutes to achieve optimal sound performance and avoid stress on the tubes.
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Monitor Connections: Regularly check headphone and power connections for loose or frayed wires to ensure proper performance and sound clarity.
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Turn Off When Not in Use: Power down the amplifier when not in use to preserve the tubes' lifespan and reduce unnecessary wear on the components.
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Use High-Quality Headphones: Pair the amplifier with high-impedance headphones for optimal performance, ensuring that the