Cayin HA-6A MK2 Vaccum Tube Headphone Amplifier
SKU: 64115997929

Cayin HA-6A MK2 Vaccum Tube Headphone Amplifier

Sale price$168750.00 Regular price$187500.00
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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
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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]
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SKU: 64115997929

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Amazon Customer
Natrona Heights, US
★★★★★ 5
They aren't using crappy malware, so if you're InfoSec program is built ...
Format: Paperback
Bought yesterday, can't put it down -- will reread it again this week. This book is a solid gold mine on pulling our InfoSec heads out of our InfoSec tailpipes and focusing on the modes and methods our real adversaries are using. (Pro Tip: They aren't using crappy malware, so if you're InfoSec program is built on stopping malware you should be concerned.) We all hear about the social engineering component to an effective attack, but to see it so effectively used over and over again with Wil's case studies really drives home the point. If you're involved in either the management of an Information Security program, or involved in the more tactical parts of penetration testing, I'd put this on your short list of books to read this year. I hope he does a follow-up.
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Reviewed in the United States on July 10, 2017
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Jason
Chelsea, US
★★★★★ 5
A well-written and updated book that covers Advanced Persistent Threats (APT) in detail.
Format: Paperback
The author truly knows his art. As a penetration tester, I feel that many books just re-hash the same old material and tools. This book covers much more than just pentesting, it covers APT and gives realistic scenarios and tools that actually work. This is a book for everyone who works offensive and defensive security because it covers how real malicious actors approach companies and steal their critical data.
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Reviewed in the United States on June 19, 2017
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Hamlet Khodaverdian
Phoenix, US
★★★★★ 5
Excellent Red Team InfoSec Book
Format: Paperback
One of the better books on the market on real penetration testing and creating advanced persistent threats. Great coding examples/strategies and how to think outside the box when it comes to attacking systems/companies. Elite guys like Wil Allsopp create their own custom tools all the time for real penetration testing. This is what nation-state actors are doing. Highly recommended.
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Reviewed in the United States on December 2, 2017
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C. Wilson
Massapequa, US
★★★★★ 5
Buy,buy,buy
Format: Kindle
Buy this rather than all the other books out there. I have a whole library full, and I do mean full, and this is one of the very few really great ones. A wonderful surprise as I was reading another book that got high praise and it is really sorry, a waste of money.
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Reviewed in the United States on June 12, 2017
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Florencia Segura MD
Chelsea, US
★★★★★ 5
Finally! A Book That Teaches Kids How to Calm Down
Format: Board book, Format: Board book
Pediatrician approved! This is a great book for toddlers, preschoolers and even school-age kids! What sets this book apart from other books on this topic is that it helps kids understand the physical sensation of their emotions. It explains what is happening in their brains and bodies when those feelings start to get "too big.” Also, instead of just telling a child to stay calm, it gives them safe, tangible ways to actually do it like belly breathing, asking for a cuddle, and so many more , As a Pediatrician who works closely with children and families, I can’t recommend this enough. It’s a gentle, practical, and science-backed tool that turns a stressful meltdown into a teaching opportunity. Will be buying more copies of this book for my kids preschool and school!
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Reviewed in the United States on March 25, 2026

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