SKU: 64115997929

Cayin HA-6A MK2 Vaccum Tube Headphone Amplifier

Sale price$168750.00 Regular price$187500.00
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

Cayin HA-6A MK2 Vaccum Tube Headphone AmplifierFeatures Single ended Class A topology for pure signal path Upgraded amplification circuit with premium components Outboard power supply design for a darker, cleaner background Gold Lion Genelax KT88 tubes provide faithful reproduction Includes preamplifier output to connect with a power amplifier Multiple headphone outputs with impedance matching for 32 600 ohm headphones Specifications Parameter Specification Physical Specifications Model Cayin HA

Features

  • Single-ended Class-A topology for pure signal path
  • Upgraded amplification circuit with premium components
  • Outboard power supply design for a darker, cleaner background
  • Gold Lion Genelax KT88 tubes provide faithful reproduction
  • Includes preamplifier output to connect with a power amplifier
  • Multiple headphone outputs with impedance matching for 32-600 ohm headphones
Specifications

Parameter

Specification

Physical Specifications

Model

Cayin HA-6A MK2

Dimensions (Power Supply)

160 × 297 × 185 mm³

Dimensions (Amplifier)

285 × 297 × 185 mm³

Net Weight (Power Supply)

8.2 kg

Net Weight (Amplifier)

11.2 kg

Technical Specifications

Tube Configuration

JJ 12AU7/ECC82 ×2, Genalex KT88 ×2, JJ GZ34/5AR4 ×2

Power Consumption

130 W

External Main Fuse

220V–240V: T1AL250V; 100V–120V: T2AL250V

External High Voltage Fuse

T160mAE250V

Working Condition

Temp: 0°C–40°C, Humidity: 20%–80%

Storage Condition

Temp: –20°C–70°C, Humidity: 20%–90%

Audio Specifications

Headphone Output Power (6.35 mm)

UL: 3500 mW + 3500 mW; TR: 2300 mW + 2300 mW

Headphone Output Power (4.4 BAL)

UL: 1000 mW + 1000 mW; TR: 650 mW + 650 mW

Headphone Output Power (4-Pin BAL)

UL: 4500 mW + 4500 mW; TR: 3000 mW + 3000 mW

Frequency Range

10 Hz–26 kHz +3 dB; 1 Hz–21 kHz ±1 dB

THD+N (Headphone)

0.3% (1 kHz, 200 mW; Rated output power <5%)

Sensitivity

240 mV–820 mV

S/N Ratio (Headphone)

104 dB (A-Weighted)

Headphone Impedance Range

L: 8–64 Ω; M: 65–250 Ω; H: 251–600 Ω

Preamplifier Specifications

Maximum Output Voltage

6 V

Gain

20 dB

THD (Preamp)

0.2% (2 V RMS)

S/N Ratio (Preamp)

98 dB (A-Weighted)

Input Sensitivity (Preamp)

200 mV

Connectivity Specifications

Input Impedance

RCA: 32 kΩ; XLR: 16 kΩ

Input Connectors

XLR, RCA

Headphone Connectors

6.35 mm ×1; 4.4 mm BAL ×1; 4-pin XLR ×1

Preamp Output Connector

RCA

Tube Substitution Options

Genalex KT88 Compatible

EL34, KT66, 6CA7, 6L6, KT77, KT88, 6550, KT90, KT120, KT150

JJ GZ34/5AR4 Compatible

GZ34, GZ37, 5AR4, 5V4G, 5R4G, 5U4G, 5Y3GT, 5DJ4

JJ 12AU7/ECC82 Compatible

12AU7, ECC82, ECC802S

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 64115997929

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L. P.
Lowell, US
★★★★★ 5
I'm replacing all of the bed pillows in the house.
Size: Cooling Queen
Best pillows ever. No stiff neck in morning, I have ordered more. Perfect loft, no chopped up foam. Cool on one side.
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Reviewed in the United States on May 19, 2026
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tim kelly
Massapequa, US
★★★★★ 5
Amazing buy will be getting more
Size: Cooling Queen
The pillows are of amazing quality the support is great there not to big in thickness and great value for two of them
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Reviewed in the United States on May 4, 2026
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Zuleima Magana
Whiting, US
★★★★★ 5
Comfort
Size: Cooling Queen, Size: Cooling Queen
Súper cómodas ricas y si permanecen frías lo más cómodo de almohadas que he tenido
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Reviewed in the United States on May 6, 2026
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Patricia Banuelos
Natrona Heights, US
★★★★★ 5
Two pillows—one firm, one cotton
Size: Cooling Queen, Size: Cooling Queen
Blue Ridge Home Fashions: Purchase this set of two Queen-sized cooling pillows. Featuring a reversible design with a cooling side and a cotton side, these medium-firm pillows offer a breathable, down-alternative fill. They are neither too hard nor too soft, helping to support your sleeping posture. Cool to the touch, soft, and breathable, these pillows are crafted from high-quality fabric to ensure a more comfortable and restful sleep.
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Reviewed in the United States on May 4, 2026
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Daemy Calero Ortega
Fort Morgan, US
★★★★★ 5
Almoada
Color: White, Size: Queen Size Set of 2, Color: White, Size: Queen Size Set of 2
Hotel-like comfort at home I bought these pillows from Beautyrest and they really exceeded my expectations. They are very soft but at the same time have good support, which helps you rest better throughout the night. They feel like luxury hotel pillows, especially because of their down-like filling. The jumbo size is perfect and they come well filled, they are not easily crushed. In addition, the cotton cover feels fresh and of good quality. They arrived quickly and well packed. After using them for several days, they maintain their shape and comfort. I definitely recommend them if you are looking to improve your rest without spending too much.
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Reviewed in the United States on March 20, 2026

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