Cayin HA-3A
The Cayin HA-3A brings airy, tube-smooth mids, engaging vocal focus and deep, controlled bass with genuine kick and rumble. Audiophilepure found its tonal richness addictive yet well judged, while a second review praised its musical appeal across headphones and genres. Balanced and single-ended inputs add welcome system flexibility.
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Nicely Roasted
Sound Quality
85/100
Build Quality
75/100
Features Usability
82/100
Value for Money
85/100
Pros
Spacious, smooth midrange gives vocals a focused, richly textured presence.
Bass delivers strong punch, controlled impact and convincing sub-bass rumble.
Enjoyable performance across a variety of headphones and music genres.
Separate balanced and single-ended source inputs support flexible system integration.
Cons
Bass is fuller than strict neutrality, which may not suit listeners seeking an entirely neutral presentation.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 85/100
Reviewers describe an enjoyable, musically involving tube presentation with spacious mids, focused vocals and notably strong bass performance. The available excerpts are less informative about background silence and specific headphone pairings, but report satisfying results across music genres and headphone choices.
Transparency Resolution
85/100
Audiophilepure describes the midrange as spacious and airy, with vocals brought slightly forward without becoming excessive. There is no detailed discussion of ultimate resolution, separation in dense mixes, or low-level detail retrieval.
Tonal Balance Musicality
91/100
The presentation is described as smooth, bodied and highly engaging, with an addictive midrange timbre that retains restraint rather than becoming overly lush. Bass is somewhat fuller than strict neutrality, yet the reviewer felt its quality kept it from overwhelming the overall balance.
Dynamics
89/100
Bass is credited with kick, punch, impact and deep low-frequency rumble, suggesting lively macrodynamic delivery. The review does not offer much direct comment on transient speed or fine microdynamic gradation.
Noise Floor
75/100
The supplied reviews do not directly address hiss, hum, background blackness or use with sensitive IEMs. As a result, quietness with highly efficient headphones remains unclear.
Headphone Compatibility
84/100
One reviewer says the HA-3A was enjoyable regardless of headphone choice and music genre, which is encouraging for everyday pairing flexibility. The excerpts do not identify the headphones used or document behavior with demanding planars, high-impedance dynamics, or sensitive IEMs.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
75/100
The supplied excerpts offer no direct assessment of chassis construction, controls, sockets, heat management or long-term reliability. Reviewers therefore say little about the practical workmanship of the amplifier.
Features Usability
82/100
The review confirms separate balanced and single-ended source connections, a useful provision for systems that combine modern balanced sources with vinyl playback. Beyond this input flexibility, the supplied material gives little detail on outputs, gain settings, controls or other day-to-day facilities.
Value for Money
85/100
At roughly $1,499 to $1,998, the HA-3A sits in a substantial premium headphone-amplifier segment. Audiophilepure calls it a winner and gives it a full recommendation, but the supplied reviews do not directly assess its asking price against competing amplifiers.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
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Specifications
Manufacturer's Description — Cayin
HA-3A
Transformer Coupled, Balanced Driven Vacuum Tube Headphone Amplifier
4-Pin XLR, 4.4mm, and 6.35mm Headphone Output
~A4 Footprint, Desktop Friendly Design
Low, Mid, High Impedance Matched Headphone Outputs
HA-3A
When exquisite design accomplished
by first class engineering, when aesthetic backed up
by rigorous production.
The HA-3A vacuum tube headphone
amplifier let you enjoy your beloved
music through your choice of headphones
or earphones in a dedicated, engaging,
and indulging retreat. HA-3A might look compact and simple,
but Cayin has devoted our renowned
engineering, decades of audio
equipment manufacturing and carefully
selected performance-based components
to make this happen.
Clean Power with Minumum Interference
HA-3A uses an RCA 25AX4GT as rectifier tube, one of the best versions of 25AX4GT available in tube market.
While converting imcoming power source to DC
current the 25AX4GT rectifier tube minimises
interference and provides clean power to
the amplification circuit.
Carefully Selected and Hand-matched Vacuum Tubes
Driver Tubes Dual 12AU7/ECC82(Matched Pair) from JJ*
Output Tubes Dual 6V6GT（Matched Pair）from Electro Harmonix*
Single-ended Vacuum Tube Circuit
The HA-3A vacuum tube amplification is designed as
a 2-stage single-ended circuit.
The 12AU7/ECC82 driver tubes will amplify the
voltage level of the incoming audio signal so that
the 6V6 output tubes will perform its amplification
at a very linear condition.
Single-ended circuit design displaces the beautiful
tone of your vacuum tubes without any cancellation.
Single-ended uses matched pair instead of matched
quad-set tubes, you can enjoy greater flexibility when
you perform tube rolling.
Transformer-coupled, Balanced Driven
The 6V6 output drives a pair of proprietary output transformers that supports single-ended and balanced
headphone outputs.
The secondary winding of the output transformer provide an alternative phase and compose a balanced
output, enables balanced driver from a single-ended
vacuum tube amplification circuit.
Both single-ended and balanced headphones are
“original” outputs from the transformers.
Impedance Matched Phone Output
Our engineers have optimized HA-3A’s output to
handle the headphone loading according to three
headphone impedance settings:
Low: 8Ω ~ 64Ω
Medium: 65Ω ~ 250Ω
High: 251Ω ~ 600Ω
Carefully Optimized Headphone Outputs
6.35mm Single-ended 4.4mm Balanced 4-Pin XLR Balanced
The 4-Pin XLR output is a full-fetched output but
the 4.4mm output is optimized for wider range of
headphones,including high sensitivity portable
headphones.
The Hidden Details
The chassis and transformer pots are treated by our proprietary 14 rounds of crafting process composed of scratch, spray, sanding and baking.
The high gloss final finishing endows a refined and delicate texture as well as protecting the amplifier during years of long service.
Dual Inputs
Balanced (XLR) and Single-ended (RCA) to cover a variety of inputs.
Balanced input will go through a pair of input transformers, the + and - half cycle will merge to become a single-ended signal.
Point-to-Point Wiring with Craftmanship
Time consuming, shortest signal path, better
attention to detail, the entire circuitry is
handwired by skillful craftmen.
Implement circuit design with high-level of
transparency and refinement, improves
overal efficiency and conductivity.
In-house Designed Premium Power Transformers
Cayin always design, wind and use high inductance,
high efficiency power transformers in our products.
Reinforcing shielding design minimizes the interference
and noise while ensure HA-3A to work in the best
condition.
High Quality Volume Control
High performance 50KA*2 Dual Unit smooth
potentiometer from ALPS offers durable,
high-precision volume control with excellent
operational fee.
Anti-inference Design
Special shielding and anti-shock design removes
microphonic effectively.
Three XL Aluminum Foot Pads
A set of three 39x18mm XL shock-absorbing aluminum foot pads to provide firm and stable amplifier placement at any hard flat surface.
2-rear & 1-front self-levelled placement to handle
the extra weight on the back of the amplifier
due to the power and output transformers.
Verified Dealers
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Authorized dealers for Cayin HA-3A
- A Tube High Fidelity — online and in-store — Almere, Flevoland, Netherlands (website)
- A1 Futureshop — online and in-store — North Rocks, New South Wales, Australia (website)
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- Advanced MP3 Players — online and in-store — Musselburgh, Scotland, United Kingdom (website)
- AES — in-store — Mitte, Hessen, Germany (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- ARK Audio — online and in-store — Borensberg, Östergötlands län, Sweden (website)
- Art & Voice — online (website)
- Art et son — online and in-store — Montréal, Québec, Canada (website)
- Audeos — online and in-store — Żywiec, Województwo śląskie (website)
and 67 more verified dealers