HA-1A

 HA-1A_main2

 

Tube Headphone Amplifier

 

The Cayin HA-1A can be used as a headphone ampli- fier as well as an preamp or even an integrated amplifier. The 2 x 2.2 watt in ultralinear mode should be sufficient for high efficiency loudspeakers. The EL-84 tubes can be switched into Triode mode. A switchable impedance from 6 to 300W allows a perfect matching with your headphones for maximum sound quality.

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“The HA-1A may be the best thing that’s ever happened to headphones… champagne sound for beer-budget bucks.”
– Sam Tellig, Stereophile, June 2006

Specifications

All Vacuum Tube Design - All Hand Made
SystemClass A Vacuum Tube Headphone Amplifier,
Pre-Amplifier and Integrated Amplifier
Dimension (WxHxD)130 × 230 × 300mm
Vacuum TubeEL84 x 2, 12AU7 × 1, 12AX7 × 1FinishSilver
Weight7kgPower Consumption60w
HEADPHONE STAGE
Frequency Response25Hz – 30kHzInput Sensitivity320mV
THD1%Input Impedance22K Ω
S/N Ratio88dBOutput Impedance6 - 300 Ω
Channel Balance0.5dB
INTEGRATED AMPLIFIER STAGE
TubesEL84 x 2Power Output1.2w × 2 RMS Triode;
2.2w × 2 RMS Ultralinear
Input Impedance22K ΩOutput Impedance8 Ω
Input Sensitivity320mVFrequency Response25Hz – 30kHz
THD2%S/N Ratio85dB
Channel Balance0.5dB
INTEGRATED AMPLIFIER STAGE
Frequency Response25Hz – 30kHzInput Sensitivity320mV
THD2%Input Impedance22K Ω
S/N Ratio85dBChannel Balance0.5dB
Power Output1.2w × 2 RMS Triode;
2.2w × 2 RMS Ultralinear
Output TerminalWBT style 5 way gold plated binding post
8Ω Connections
PREAMPLIFIER STAGE
Frequency Response15Hz – 40kHzOutput Terminal1 pair RCA
THD0.8%Input Terminal1 pair RCA
S/N Ratio82dBInput Impedance22K Ω
Output2000mV (Max 4000mV)Total Gain14dB

 

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