Cayin HA-6A MK2 Desktop Tube Headphone Amplifiers Original

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100% PRODUK ORIGINAL
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The Cayin HA-6A MK2 Builds Upon Its Predecessor With a Dual-Chassis Design, Updated Vacuum Tubes, and a Dedicated Pre-Out Output
Single-ended Class-A vacuum tube headphone amp
Upgraded amplification circuit
Outboard power supply design for darker, cleaner background 
Gold Lion Genelax KT88 tubes provide faithful reproduction
Includes preamplifier output to connect with power amplifier

HA-6A MK2The Cayin HA-6A MK2 is a 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 tor maximum musical integrity. Cayin designed the gain circuitry, independently adjusting the operation current of each vacuum tube stage and pairing it with a pure, stable power supply, ensuring the HA-6A MK2 fully expresses the rich tonality and musical depth that single-ended Class A design is renowned tor.
Delivering 3000mW (TR) or 4500mW (UL) per channel, the HA-6A MK2 powers a wide range of headphones with both precision and musicality.
Engineered for Pure PerformanceDesigned for uncompromising sound quality, the HA-6A MK2 features a dual-chassis design that isolates the power supply for lower noise and greater clarity. Each amplification stage is independently regulated to minimize interference, while a custom silver-plated copper umbilical cable ensures efficient, lossless current delivery.

Upgraded Amplification CircuitryThe headphone amplification circuit has been 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. 
Tube ComplementHigh-Voltage Rectifier
Equipped with two JJ GZ34 / 5AR4 rectifier tubes, delivering strong and stable current output. 
Voltage Amplification Stage
Driven by two JJ 12AU7 / ECC82 dual triodes, providing enhanced signal gain while preserving fine detail and layering. 
Single-Ended Class A Power Amplification
Utilizing a matched pair of Genalex KT88 tubes, faithfully reproducing the natural tonality of music with rich, engaging sound. 

Impedance Matched Headphone OutputIn-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.
Additional FeaturesDual Operation Mode
Change your sound signature with the flip of a switch. Triode mode offers a smooth sound with rich harmonics and lush, holographic imaging. Ultralinear Mode improves the dynamics and punch, with a clean authoritative sound and enhanced extensive on both ends of the frequency spectrum.
Volume Control
A Premium Japanese ALPS potentiometer delivers smooth, precise and reliable volume adjustment.
More Than a Headphone Amp
The HA-6A MK2 introduces a dedicated PRE-OUT output, elevating it from a headphone amplifier into the centerpiece of your audio system. Connect it to external power amplifiers or active speakers to create a refined desktop or small-scale Hi-Fi setup.

In-House Developed Transformers
Cayin has always insisted on developing high-quality transformers in-house. The custom toroidal power transformer uses a high-purity copper winding design, which produces lower magnetic noise compared to standard transformers. 
AudioCapX Coupling Capacitors
Accurately isolate DC current, improving the precision and stability of audio signal transmission.
High-Grade Electrolytic Capacitors (Japan)
Provide fast power delivery and filter out ripple current, reducing sonic coloration. 
60-Second Soft Start Function
Ensures silent startup with a delayed warm-up, allowing the tubes to fully stabilize and deliver the best sound performance. 
Specifications
DimensionsPower Supply: 160 x 297 x 185mmAmplifier: 285 x 297 x 185mm 
Net WeightPower Supply: 8.2KGAmplifier: 11.2KG
Full list of specifications
Cayin HA-6A + HA-6A MK2 comparison
In the Box
Cayin HA-6A MK2 power supply + amplifier
Tubes
Power cable
User manual