HA-6A vs Unison Research SH
The SH's signal-to-noise is 110 dB against the HA-6A's 98 dB, its thd 0.200% against 1.000%, and its weight 6 kg (13 lbs) against 19.5 kg (43 lbs). Both share depth (322 mm).
AI-generated product photo — not official manufacturer imagery.
AmplifiersHeadphone Amplifiers
Estimated price (community-sourced)
$1,700 - $2,499
Around — community and catalog average, updates slowly
About the HA-6A
The Cayin Audio HA-6A is a high-power, transformer-coupled Class A tube headphone amplifier with selectable Triode (TR) and Ultra-Linear (UL) operating modes, impedance-matched headphone outputs, and both single-ended and balanced connections. It supports EL34 or KT88 power tubes and includes selectable low, medium, and high headphone-impedance ranges. The HA-6A is distinct from the newer, separately designated HA-6A MK2. Available product listings and Cayin-related documentation identify the original HA-6A as an established model, while the MK2 has appeared as its successor; however, the available sources do not provide a definitive manufacturer statement that the original HA-6A has been officially discontinued.
Specifications
Analog Output
Analog signal output specifications
- THD
- 1.000%
- SNR
- 98 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- XLR, RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 360 × 197 × 322 mm (W × H × D)
- Weight
- 19.5 kg (43 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions