Outboard power supply design – Engineered for pure performance
Every detail of the design is dedicated to delivering uncompromising sound quality. The outboard power supply adopts a dual-chase architecture, physically separating the amplification circuit from the power stage. This ensures clean, low-noise energy delivery, free from interference, for a darker background and greater musical clarity.
The Cayin HA-6A MK2 is a meticulously engineered single-ended Class A headphone amplifier powered by KT88 output tubes. The driver tubes amplify signal voltage under highly linear conditions, while the K188 tubes deliver complete, undivided output for maximum musical integrity. Cayin engineers carefully designed the gain circuitry, independently adjusting the operation current of each vacuum tube stage and pairing it with a pure, stable power supply. This ensures the HA-6A MK2 fully expresses the rich tonality and musical depth that single-ended Class A design is renowned for.
With an output of 3000mW + 3000mW (TR mode) or 4500mW + 4500mW (UL mode), the HA-6A MK2 drives a wide range of headphones effortlessly, offering an immersive audio experience that balances technical precision with pure musicality.
Comprehensive upgrade in headphone amplification circuitry
The headphone amplification circuit has been completely upgraded with high-quality components, delivering breakthroughs in both core performance and user experience. With wide compatibility and enhanced driving power, it can accommodate and power a greater variety of headphones, meeting the demands of diverse listening preferences.
Impedance-Matched Headphone Output
In-house output transformers provide impedance-matched outputs for low (8–64Ω), mid (65–250Ω), and high (251–600Ω) loads, ensuring natural, balanced sound. With 6.35mm, 4.4mm, and 4-pin XLR outputs, it delivers up to 4500mW per channel for demanding headphones, while the optimized 4.4mm jack suits sensitive IEMs with reduced output and improved S/N performance.
More Than a Headphone Amp – Now a Preamp too
The HA-6A MK2 introduces a dedicated PRE-OUT output, elevating it from a headphone amplifier into the centrepiece of your audio system. Connect it to external power amplifiers or active speakers to create a refined desktop or small-scale Hi-Fi setup. With this added versatility, one device now fulfils both your headphone and speaker listening needs.
Enjoy the fun of tube rolling – your sound, your choice
The HA-MK2 is built for tune enthusiasts, supporting a wide range of compatible vacuum tubes. Swap and experiment freely to match your personal taste or listening environment. Each tube type offers its own sonic character, letting you shape your own sound and explore different tonal flavours.
