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Cayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU

Original price $ 2,999.00 - Original price $ 2,999.00
Original price
$ 2,999.00
$ 2,999.00 - $ 2,999.00
Current price $ 2,999.00
Color: Black

Six Years On, the HA-6A Legacy Continues

The HA-6A MK2 is the long-awaited second-generation upgrade to Cayin’s
acclaimed HA-6A. Featuring a newly adopted dual-chassis architecture, it physically
separates the power supply from the amplification circuit to minimize magnetic
interference. With a fully hand-wired, point-to-point design, the HA-6A MK2 offers
pure signal transmission. All while preserving the lush, emotional sound Cayin is
known for.

Tube Configuration

At the core of the HA-6A MK2 are carefully selected and matched vacuum tubes,
including:

  • 2 × JJ GZ34 / 5AR4 (High-voltage tube rectification
  • 2 × JJ ECC82 / 12AU7 (Voltage amplification stage)
  • 2 × Genalex KT88 (Class A single-ended power amplification)

Each tube was chosen for its acoustic character, stability, and longevity. The power
tubes operate in a pure single-ended Class A configuration, offering superb linearity.
Designed with tube enthusiasts in mind, the amplifier offers broad tube rolling
compatibility—supporting power tubes such as 6550, KT66, KT150, and more.

Dual Operating Modes: Triode & Ultralinear

To adapt the sound to various musical genres and listening preferences, the HA-6A
MK2 features two selectable operating modes:

  • Triode Mode (TR): Smooth, elegant, and naturally warm. Ideal for vocals, jazz, and acoustic music.
  • Ultralinear Mode (UL): Extended dynamics, firmer bass, and improved control—suited for orchestral or cinematic recordings.

Switching is easily accessible from the front panel, allowing for immediate real-time
listening comparisons.

Versatile Connectivity with Preamp Capability

  • The HA-6A MK2 features a two set of input terminals:
  • XLR Balanced Input
  • RCA Unbalanced Input

A comprehensive set of headphone outputs

  • 6.35mm Unbalanced
  • 4.4mm Balanced
  • 4-pin XLR Balanced

Accommodating a wide range of headphone types and connection preferences.
In addition to its headphone amplification duties, it also includes an RCA preamp
output, allowing it to function as a high-quality tube preamplifier when connected to a
separate power amplifier or active speakers.

Dual-Chassis Design

To maximize performance, the HA-6A MK2 adopts a separated power supply and amplifier chassis design. This architecture minimizes magnetic interference.

  • Custom EI output transformers and a dedicated toroidal power transformer are specially developed for the HA-6A MK2.
  • Internal component shielding and optimized module layout ensure low noise.

Remote Control & Protective Features

  • High-grade aluminum remote control included for volume and mute functions

Specifications

Parameter  Specification
Output Power (4-pin Balanced) UL: 4500mW + 4500mW
TR: 3000mW + 3000mW
Output Power (4.4mm Balanced) UL: 1000mW + 1000mW
TR: 650mW + 650mW
Output Power (6.35mm Unbalanced) UL: 3500mW + 3500mW
TR: 2300mW + 2300mW
Frequency Response 10Hz – 26kHz (±3dB)
THD 0.3% (1kHz @ 200mW)
Signal-to-Noise Ratio 104dB (A-weighted)
Impedance Matching 8Ω–600Ω (L/M/H selectable)
Preamp Output Voltage 6V max
Preamp Gain 20dB
Tube Complement ECC82 ×2, KT88 ×2, GZ34 ×2
Inputs 1 × RCA, 1 × XLR
Preamp Output 1 × RCA
Power Consumption 130W
Dimensions (W × D × H)

PSU: 160 × 297 × 185mm / AMP: 285 × 297 ×185mm

Net Weight PSU: 8.2kg / AMP: 11.2kg

 

Cayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeckCayin HA-6A MK2 KT88 Tube HeadampPreamp with External PSU - MusicTeck

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