Description About the Cayin HA-300 MK2 Class A Tube Headphone Amplifier The Cayin HA-300 MK2 Class A Tube Headphone Amplifier is one of the most captivating headphone amplifiers available for serious audiophiles. The use of classic 300B tubes in a pure Class-A single-ended design produces a beautifully rich, spacious sound that brings recordings to life with incredible realism. Designed as Cayin’s flagship headphone amplifier, the HA-300 MK2 combines premium tube circuitry, hand-wound transformers and exceptional build quality, making it a stunning centrepiece for high-end headphone systems and serious music listening. What really sets the HA-300 MK2 apart is the sense of scale and musicality it delivers. Instruments feel three-dimensional, vocals sound natural and the overall presentation is immersive and emotionally engaging. When paired with high-end headphones and a quality DAC, it becomes a truly reference-grade listening system. View Cayin Products >> Frequently Asked Questions What tubes does the Cayin HA-300 MK2 use? The amplifier uses 300B output tubes, 6SN7 driver tubes and 22DE4 rectifier tubes. Is the HA-300 MK2 a Class-A amplifier? It operates in pure Class-A single-ended triode mode. Does the HA-300 MK2 support balanced headphones? It includes 4-pin XLR and dual 3-pin XLR balanced headphone outputs. What DAC pairs well with the Cayin HA-300 MK2? DACs like the Cayin iDAC-8 or iDAC-6 MK2 pair beautifully with the amplifier. Is the Cayin HA-300 MK2 suitable for high-end headphone systems? It is designed specifically for reference-level headphone listening setups What the Experts Say Headfonics – they highlight the HA-300 MK2 for its lush tonal character, powerful output and exceptional soundstage, making it a top-tier headphone amplifier for audiophile systems. Head-Fi Community – Many enthusiasts consider the HA-300 MK2 to be one of the finest PX300B headphone amplifiers available, praised for its natural tone and immersive presentation. Features 300B Single-Ended Triode Amplification The HA-300 MK2 uses legendary PX300B output tubes in a pure single-ended triode design, delivering rich harmonics and exceptional musicality. Pure Class-A Operation The amplifier operates entirely in Class-A, ensuring smooth, detailed sound reproduction with outstanding dynamics. Hand-Wound Output Transformers Cayin’s custom hand-wound output transformers are designed specifically for headphone amplification, improving clarity, control and frequency response. Multiple Headphone Outputs The amplifier supports a variety of headphone connections including: 4-pin XLR balanced output Dual 3-pin XLR balanced outputs 6.35mm single-ended output Separate Power Supply Chassis A dedicated external power supply unit reduces noise and interference, improving overall sonic performance. Multiple Output Impedance Settings Selectable impedance settings allow the amplifier to match a wide range of headphones. Recommended With This Product Customers considering the Cayin HA-300 MK2 often pair it with these complementary components. DACs Cayin iDAC-8 Dual Timbre DAC Streamers Cayin iDAP-8 Network Music Player Digital Sources Volumio Primo Plus Streaming DAC Ideal For High-end headphone listening systems Audiophile desktop setups Reference-level music playback Specifications Brand: Cayin Model: HA-300 MK2 Product Type: Class-A Tube Headphone Amplifier Amplifier Design: Single-Ended Class-A tube amplifier Tube Complement: 2 x Genelux Gold Lion PX300B output tubes 2 x Tung-Sol 6SN7 driver tubes 4 x NOS RCA 22DE4 rectifier tubes Inputs: Balanced XLR RCA stereo Headphone Outputs: 4-pin XLR balanced Dual 3-pin XLR balanced 6.35mm single-ended Output Impedance Settings: Multiple selectable options Power Supply: External power supply chassis Dimensions (Amplifier): approx. 395 × 318 × 175 mm Weight: approx. 15 kg (combined units) MPN: HA-300MK2 SKU: Cayin-HA300MK2 EAN / UPC / GTIN: 6957914911509 Why Buy From Rapallo ✔ New Zealand Hi-Fi specialists since 2005 ✔ Authorised Cayin dealer with genuine products and full manufacturer warranty ✔ Expert advice on headphone and DAC matching ✔ Carefully curated range of premium Hi-Fi equipment ✔ Free NZ shipping on orders over $299
