Astell & Kern SE200
The SE200 turns portable listening into a spacious, high-resolution experience, pairing clean authority with a rare choice of DAC signatures. Its AKM path delivers fast, neutral clarity, while ESS brings warmer body; What Hi-Fi? found benchmark-level performance, and HiFi Choice praised its effortless dynamics. Premium metal-and-ceramic craftsmanship completes this exceptionally versatile player.
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Deliciously Crispy
Sound Quality
91/100
Build Quality
92/100
Features Usability
93/100
Value for Money
89/100
Pros
AKM output delivers exceptional clarity, dynamics, rhythmic fluency and insight, with a fast, tonally neutral presentation.
Drives balanced and unbalanced headphones with clean power, weight, spaciousness and convincing detail, including demanding planar models.
Two independent DAC/output stages provide genuinely distinct sonic flavours and useful flexibility across headphones and music.
Luxurious, solid aluminium-and-ceramic construction with especially refined volume-control detailing.
Cons
The ESS output is warmer and fuller but falls short of the AKM path in spaciousness, clarity and ultimate subtlety.
The dual-DAC design adds cost and complexity; reviewers question whether both output sections are necessary at this price.
Streaming apps do not support offline content storage, limiting use away from a network connection.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 91/100
Reviewers find the SE200 exceptionally clear, spacious and controlled, with an unusually useful choice between a more neutral AKM presentation and a warmer ESS alternative. It has ample authority for demanding headphones, although the supplied reviews offer little direct listening commentary on hiss or ultra-sensitive IEM behaviour.
Transparency Resolution
94/100
Hi-Fi News calls the resolution of violin and piano “spectacular,” praising its ability to reveal a realistic acoustic around performers. What Hi-Fi similarly highlights clarity, insight and fine detail on a crystal-clear, informative canvas, while Hi-Fi Choice finds hi-res nuances fully intact.
Tonal Balance Musicality
92/100
What Hi-Fi describes the AKM side as bolder, more tonally neutral and articulate than some Astell & Kern siblings, with faithful delivery across varied music. The ESS output provides a distinctly fuller and warmer alternative that suits lush orchestral recordings, though it gives up a little spaciousness and final subtlety.
Dynamics
95/100
Hi-Fi Choice hears near-unlimited headroom, calling its combination of dynamism and effortlessness truly spectacular. Hi-Fi News also reports clean power in reserve, strong punch and vitality, from quiet electronic textures to explosive orchestral passages.
Noise Floor
84/100
The reviews do not directly discuss background hiss, hum or use with highly sensitive IEMs. They consistently describe a clean, clear presentation, but there is not enough reviewer listening evidence to make a stronger claim about silence with every sensitive load.
Headphone Compatibility
92/100
Hi-Fi News reports very good sound through both balanced and unbalanced headphones and says the player controls headphones with clean power in reserve. It also finds that the SE200 drives demanding Oppo PM-1 planars convincingly, while retaining weight, space and detail with B&W P9 Signature headphones.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
92/100
Reviewers consistently praise the SE200's premium execution: Hi-Fi Choice calls the metalwork absolutely exquisite, and Hi-Fi News finds the compact player solid, substantial and luxurious. The aluminium chassis, ceramic surfaces and especially sculpted volume control are repeatedly singled out as highlights.
Features Usability
93/100
This is a notably versatile portable player, offering two independently selectable DAC/output stages, balanced and single-ended headphone connections, USB-DAC operation, Wi-Fi streaming and aptX HD Bluetooth. Adjustable DAC filters and comprehensive EQ provide meaningful tailoring, although Hi-Fi Choice notes that wired listening remains clearly superior to Bluetooth and Tidal operation is somewhat limited.
Value for Money
89/100
At £1,800, the SE200 is an unapologetically premium portable player, and both What Hi-Fi and Z Reviews question whether the twin-DAC concept fully justifies its extra cost. Even so, What Hi-Fi calls it a new performance benchmark at the price, while Z Reviews considers both output paths sonically persuasive.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
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Specifications
- Model
- SE200
- Body Color
- Moon Silver
- Body Material
- Aluminum
- Display
- 5.0inch (720 x 1,280) Touch display
- Supported Audio Formats
- WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
- MQA playback
- (Tidal Masters), Local files, External USB, MQA-CD(ripped)
- Sample rate
- PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample) / DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
- Output Level
- Unbalanced: AKM 3.0Vrms / ESS 2.0Vrms (Condition No Load) Balanced: AKM 6.0Vrms / ESS 4.0Vrms (Condition No Load)
- CPU
- Octa-Core
- DAC
- Multi DAC: AKM AK4499EQ x1 (Single DAC) / ESS ES9068AS x2 (Dual DAC)
- Decoding
- Support up to 32bit / 384kHz Bit-to-Bit Playback
- Input
- USB Type-C input (for PC & MAC)
- Outputs
- Unbalanced Out (3.5mm) x2 / Balanced Out (2.5mm, only 4-pole supported) x2
- Wi-Fi
- 802.11 b/g/n (2.4GHz)
- Bluetooth
- V4.2 (A2DP, AVRCP, Qualcomm® aptXTM HD)
- Dimensions
- 3.02 ”(76.9 mm) [W] x 5.20 ”(132.2 mm) [H] x 0.62 ”(15.8 mm) [D]
- Weight
- 9.66 oz (274 g)
- Feature Enhancements
- Firmware upgrades supported (OTA)
- Frequency Response
- Unbalanced: AKM ±0.015dB, ESS ±0.023dB (Condition: 20Hz~20kHz) / Balanced: AKM ±0.010dB, ESS ±0.015dB (Condition: 20Hz~20kHz) Unbalanced: AKM ±0.050dB, ESS ±0.065dB (Condition: 20Hz~70kHz) / Balanced: AKM ±0.030dB, ESS ±0.10dB (Condition: 20Hz~70kHz)
- Signal to Noise Ratio
- Unbalanced: AKM 124dB, ESS 121dB @ 1kHz / Balanced: AKM 125dB, ESS 123dB @ 1kHz
- Crosstalk
- Unbalanced: AKM -138dB, ESS -138dB @ 1kHz / Balanced: AKM -144dB, ESS -144dB @ 1kHz
- THD+N
- Unbalanced: AKM 0.0003%, ESS 0.0006% @ 1kHz / Balanced: AKM 0.0004%, ESS 0.0006% @ 1kHz
- IMD SMPTE
- Unbalanced: AKM 0.0003%, ESS 0.0003% 800Hz 10kHz(4:1) / Balanced: AKM 0.0003%, ESS 0.0003% 800Hz 10kHz(4:1)
- Output Impedance
- Unbalanced Out 3.5mm (AKM 0.7ohm, ESS 1ohm) / Balanced out 2.5mm (AKM 1.3ohm, ESS 1.6ohm)
- Clock Jitter
- 25ps(Typ)
- Reference Clock Jitter
- 200 Femto Seconds
- Capacity
- 3,700mAh 3.8V Li-Polymer Battery
- Continuous Playback Time
- About 10 hours (Standard - AK4499EQ, MUSIC: FLAC, 16-bit/44.1kHz, Unbalanced, Volume 50, EQ OFF, LCD OFF) About 14 hours (Standard - ES9068AS, MUSIC: FLAC, 16-bit/44.1kHz, Unbalanced, Volume 50, EQ OFF, LCD OFF)
- Charge Time
- About 2.5 hours (Standard - 9V/1.67A Fast charging)
- Built-in Memory
- 256GB [NAND]
- External Memory
- microSD (Max. 1TB) x1
- Supported OS
- Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up
- Specification
- - Audio was NOT muted during the measurement. - The image/specification may be changed without notice to improve product performance and quality.
Manufacturer's Description — Astell & Kern
The answer to the value of premium found in SE200
The SE200 is the second model from the Astell&Kern A&futura premium line of Digital Audio Players.
The SE200 is the second model from the Astell&Kern A&futura premium line of Digital Audio
Players. After the first model SE100, we were once again thinking about the nature of the word premium and
asked ourselves, "What is the value of premium in Hi-Fi and how can we express it with a product?" We
decided to "Let's make One device that nobody can duplicate" We wanted to try something no one else has
tried before, including Astell&Kern.
The result is the SE200. We introduce the second product from Astell&Kern's premium A&futura line,
is the SE200. We hope that you will experience our answer to the value of premium found in SE200.
- Equipped with the world's first Multi DAC (1x AK4499EQ + 2x ES9068AS)
- Independent AMP structure designed to compliment each DAC's characteristics and DAC Filters to create your own sound
- Audio performance to feel premium Hi-Fi sound presented by Astell&Kern
- Upgrades that add a Premium value experience
World's First Multi-DAC DAP
The A&futura SE200 is the world's first Multi DAC player. Since the release of the Dual DAC AK120 player
in 2013, we have not seen any products feature more than Dual DACs in the last seven years. This prompted us
to ask the question, "Why hasn't there been more than two DACs in a player?" So, we set out to become the
first manufacturer to use more than two DACs and the result is the SE200.
The SE200 features the latest audiophile DACs from ESS, the ES9068AS in a Dual DAC configuration. We then
added a single AK4499EQ, AKM's flagship DAC that is used in our flagship SP2000. Combining the three DACs,
we have produced the world's first multi-DAC DAP. This pairing exhibits the philosophy of the A&futura
line to pursue fundamentally different sound than found in typical DAPs. To properly implement multiple
DACs, we needed to spend twice the amount of time on development and double the amount of time in properly
tuning the player.
Astell&Kern is not content to keeping things the same all the time. We are constantly working to improve
on what we have already achieved to bring the most accurately reproduced and best sound to our products.
Independent AMP Sections Designed to Match DAC Characteristics
The SE200 was not designed with one AMP circuit, but multiple, different AMP designs to optimize the different characteristics of the AKM and ESS DACs that are used in the player. By separating the signals for each channel of Balanced and Unbalanced, we designed independent circuits that do not interfere with each other to provide the best sound possible.
Unique manufacturing technology that takes a step further
Astell&Kern products are often compared to art sculptures, with colorful faces and angles that are not
found in other products. This crafting is done using precise metal processing technology.
The SE200 maintains a similar design identity to the SE100 which combines trapezoidal straight lines and
curves. These curves are the result of ultra-precision metal processing that has been perfected by
Astell&Kern.
After experimenting with different materials for the rear of the SE200, we created a new ceramic rear cover,
instead of the glass found on the previous generation SE100. This material not only improves wireless
network performance, but produces a more premium feel to the player. New manufacturing techniques were
developed to precisely mold the high-gloss ceramic cover involving seven separate processes. A low-speed
processing method is used to prevent cracking and produce a durable backing. The results are a rear cover
that is not just beautiful, but functional. The Aluminum body on the S200 provides maximum sound quality,
while suppressing noise as much as possible. The use of laser ground extension technology gives you the best
sound possible, without interference or distortion.
The vibration-free processing machines used by Astell&Kern are the same ones used by expensive Swiss
luxury watch manufacturers. This is reflected in the crafting of the volume wheel which is processed
precisely like the crown of a luxury watch for the best operating feel. Astell&Kern products are
designed to achieve perfect integration at whatever angle you look at it in your hands.
Astell&Kern combines these small parts to make a big difference in the quality of our products that no
other manufacturer can match.
Playback information reflected in light
The SE200 features a volume wheel LED that displays a variety of music playback information including volume range, bit-rate of track currently playing and the current DAC that is being used for playback of music.
* LED can be turned on or off according to user setting.
DESIGN
The design of the A&futura SE200 maintains a similar design identity to the SE100, combining bold curves
while maintaining a trapezoidal shape identity.
The design of the blended curves on the side of the trapezoidal body of the SE200 is meant to express the
idea of the merging of two different types of DACs into one unified player.
The volume knob is divided into two to symbolize the two different DACs used, and harmonizes
with the curves on the side of the player to reflect soft light.
The precision processing of
diagonal lines shows the unique sophistication Astell&Kern is known for.
The A&futura SE200 is the first to apply a new material, called a ceramic plate to the
top and rear of the player.
Unlike conventional glass, you can see that the light flows
deeply and softly around the top and rear of the player.
The rear cover with curved cuts
meets the side surface of the player and gently wraps around the wheel, showing a smooth
flow of light.
Discover the subtle details Astell&Kern uses to enhance the beauty of the SE200, from
the ceramic plates that are precisely processed to fit the aluminum body of the player to
the precise lines that encompass the player.
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