Cayin HA-6A Mk2: High-Power Single-Ended Class A Headphone Tube Amplifier
By HiFi Editorial24 February 2026
Key Highlights
The Cayin HA-6A Mk2 is a fully analog Class A single-ended tube headphone amplifier with external vacuum tube power supply.
It features output power of up to 4.5 W per channel, supporting headphones with impedance from 8 to 600 Ohms.
Equipped with KT88 output tubes, it offers switchable modes: ultralinear for dynamics and triode for musicality.
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