SKU: 64115997929

Cayin HA-6A MK2 Vaccum Tube Headphone Amplifier

$168750.00 $187500.00
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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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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4.7 ★★★★★
Based on 18 reviews
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Product Reviews
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Verified Purchase
Shameeka Shaneice Ewing
Massapequa, US
★★★★★ 5
Worth the money!
Color: Lightgreen
Absolutely amazing product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
L
Verified Purchase
Lane
Whiting, US
★★★★★ 5
Perfect beginner set
Color: Lightgreen
Love this!!! The toothbrush heads are a little flimsy but overall really liked this for my 3 year old.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
C
Crunchy Life
Birmingham, US
★★★★★ 5
Super Cute, Fun, & Effective
Color: Lightgreen
This set of water flosser and electric toothbrush are just adorable! The shapes of them fit in the hands really comfortably, but also add to the cuteness as the shapes of the animals! Yes, this is meant for kids - so the toothbrush heads are small (for little kids), and the water flosser doesn't spray terribly hard. BUT they're still very effective. I especially like the water flosser. It can be taken into the bathtub/shower while bathing, so the spray doesn't end up going places we don't want water to go. It has a small tank of water, and I recommend using room temp water (rather than cold) so that it's comfortable on the gums and teeth. Also to note, the flosser doesn't work when it's sideways or upside-down - it needs to be held upright. This set is so cute, easy to use, easy to re-charge, and very comfortable. It's also very good quality - a great purchase. I love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
B
Bookmarked Opinions
Lowell, US
★★★★★ 4
4 year old approved!
Color: Lightgreen, Color: Lightgreen
Love that this is a complete set, down to the wall block for the charger! My daughter is 4 and absolutely loves this set. I personally feel like the toothbrush head is a tad small, but it does do the job well. Its a soft brush head, with plenty of replacement heads. The toothbrush and the flosser both arrived fully charged, and so far we havent had to recharge it, but we're only a few days in. So, it seems to have a pretty good battery life so far. (I will update my review if anything changes on that aspect) The toothbrush and flosser both stand upright independently on the counter, without tipping over. The water flosser is hard fir my daughter to do by herself. She sprays water everywhere, as theres several buttons on it and she cant seem to remember in time which button turns it off. I help her with flossing and its been going fine. Whether youre on high or low the water pressure is not too hard for a kids mouth. In fact, I think the low setting does nothing but rinse the mouth and basically teach the habit of flossing. We use the high setting and it does and OK job. I am a little old school though, and feel like nothing will top a good ole dental floss flossing, but water flossing is a safer route to avoid cutting gums or getting floss stuck between close teeth. The sound level is minimal, a fraction of the sound level my adult water flosser makes. It doesnt shake/vibrate too badly in the hand and theyre bith comfortable to hold, and size appropriate for my (4yrs) daughters hands. It comes in a really nice box, packaged perfectly, making this a great gift for your little ones. The colors and theme makes brushing teeth exciting and fun again for your littles :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2025
C
Cyclegreen
Carnegie, US
★★★★★ 5
Great for kids
Color: Lightgreen
The HUACOCARE Kids Water Flosser and Electric Toothbrush Combo is an absolute game-changer for establishing a solid dental hygiene routine with children. The light green giraffe and monkey design is incredibly charming and immediately turned what used to be a bedtime struggle into a fun activity that my child actually looks forward to. Having both the sonic toothbrush and the water flosser in one compact unit is brilliant, as it saves counter space while ensuring that every part of their mouth gets a professional-level clean. The three gentle flossing modes and two sonic brushing modes are perfectly calibrated for younger, more sensitive gums, providing a thorough clean without any discomfort. One of the standout features of this set is how braces-friendly it is; the water flosser reaches those tricky spots around wires and brackets that a standard toothbrush simply can't touch. It is clear that a lot of thought went into the ergonomics and the "fun factor," making it a perfect gift that is both practical and engaging. Since we started using this combo, our dentist has noticed a significant improvement in plaque removal and overall gum health. If you are looking for an all-in-one solution to build healthy brushing habits and make dental care feel like less of a chore, this set is worth every penny.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026

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