Astell & Kern KANN MAX
With reference-grade clarity, textured bass and a wide, holographic soundstage, the KANN MAX brings serious portable authority. ecoustics highlights its transparent detail and ability to drive an unusually broad range of headphones, while MajorHifi praises its natural, studio-like presentation. Quad-DAC decoding, three headphone outputs and formidable gain make it a compelling all-in-one source for demanding collections.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
Deliciously Crispy
Sound Quality
91/100
Build Quality
90/100
Features Usability
93/100
Value for Money
85/100
Pros
Highly resolving, transparent sound with crisp detail, textured bass and precise imaging.
Exceptional drive flexibility across sensitive IEMs and demanding headphones, with multiple gain settings and balanced outputs.
Wide, spacious soundstage with strong instrument separation and natural holographic imaging.
Cons
The interface feels slower than expected at this price, and streaming apps require too many navigation steps.
Higher gain settings can make the treble sound strident and etched with sensitive IEMs.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 91/100
Reviewers consistently describe a clean, highly resolving and spacious presentation with strong bass control and enough power for demanding headphones. Its natural, slightly smoothed technical character avoids sounding dry, though the most expensive flagship players retain an edge in layering and realism.
Transparency Resolution
93/100
MajorHiFi calls the presentation pure and reference-like, while ecoustics heard crisp, transparent sound with excellent detail retrieval and resolution. PortaFi likewise highlights its technical, micro-contrast-focused delivery, although it stops short of the layering and hyper-realism of top flagship players.
Tonal Balance Musicality
91/100
Reviewers find the KANN MAX natural and well balanced rather than sterile, with enough body and texture to keep its technical presentation engaging. ecoustics found brass lively without becoming metallic and noted added richness with the Legend X, while PortaFi says its tuning smooths rougher recordings without obscuring them.
Dynamics
92/100
Bass is repeatedly praised as deep, fast, textured and tightly controlled, with MajorHiFi noting layered depth and PortaFi hearing excellent control at the lowest frequencies. The substantial output also gives demanding music convincing drive, with ecoustics reporting no struggle across its headphone collection.
Noise Floor
85/100
The supplied reviews do not directly discuss hiss, hum or background silence with sensitive earphones. ecoustics successfully used UE Live and Legend X IEMs, but its comments focus on gain matching and tonal changes rather than residual noise.
Headphone Compatibility
94/100
The multiple gain settings and high-output Super mode are a major strength: ecoustics says it drove virtually everything in its headphone and IEM collection without difficulty. Sensitive IEMs need sensible setup, however; medium gain worked best with the UE Live, while higher settings made the upper range strident and etched.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
90/100
Reviewers describe a compact but substantial player that fits the hand well and feels solidly constructed. ecoustics says the build inspires confidence in long-term durability, while MajorHiFi specifically praises the improved, more user-friendly volume dial.
Features Usability
93/100
The KANN MAX is an unusually complete portable source, combining quad-DAC playback, Wi-Fi streaming, Bluetooth with aptX HD and LDAC, USB DAC capability, microSD expansion, and 3.5mm, 2.5mm and 4.4mm outputs. Controls are described as logical and the functionality as excellent, but reviewers note some UI quirks and slower-than-ideal TIDAL synchronization.
Value for Money
85/100
At $1,299, it is positioned as a premium portable player with unusually broad driving capability and a comprehensive feature set. The reviews provide little direct comparison with competing players or a firm verdict on whether it is especially strong value at its asking price.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
YouTube Reviews
Forum Mentions
No forum mentions found yet
Specifications
- Model
- KANN MAX
- Body Color
- Anthracite Gray, Brown Mud
- Body Material
- Aluminum
- Display
- 4.1-inch 720 x 1280 touch screen
- Supported Audio Formats
- WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA
- Sample Rate
- PCM : 8kHz ~ 768kHz (8/16/24/32bits per Sample) DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), DSD512(1bit, 22.4MHz) Stereo
- Output Level
- [Low] Unbalanced 2Vrms / Balanced 4Vrms (Condition No Load), [Mid] Unbalanced 4Vrms / Balanced 8Vrms (Condition No Load), [High] Unbalanced 6Vrms / Balanced 12Vrms (Condition No Load), [Super] Unbalanced 8Vrms / Balanced 15Vrms (Condition No Load)
- CPU
- Quad-core
- DAC
- ESS ES9038Q2M x4 (Quad-DAC)
- Decoding
- Support up to 32-bit/768kHz Bit-to-Bit Playback
- Input
- USB Type-C input (for charging & PC & MAC)
- Outputs
- Unbalanced Out (3.5mm), Optical Out (3.5mm) Balanced Out (2.5mm, only 4-pole supported | 4.4m, only 5-pole supported)
- Wi-Fi
- 802.11 b/g/n (2.4GHz)
- Bluetooth
- V5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC)
- Dimensions
- 2.68"(68.3mm)[W] x 4.6"(117mm)[H] x 0.92"(23.6mm)[D]
- Weight
- about 10.76oz (305g)
- Feature Enhancements
- Firmware upgrade supported (OTA)
- Operating Temperature
- 0℃ ~ + 40℃ (32℉~ 104℉)
- Frequency Response
- ±0.023dB (Condition : 20Hz~20kHz) Unbalanced │ ±0.026dB (Condition : 20Hz~20kHz) Balanced ±0.035dB (Condition : 20Hz~70kHz) Unbalanced │ ±0.072dB (Condition : 20Hz~70kHz) Balanced
- S/N
- 114dB @ 1kHz, Unbalanced │ 115dB @ 1kHz, Balanced
- Crosstalk
- -124dB @ 1kHz, Unbalanced │ -135dB @ 1kHz, Balanced
- THD+N
- 0.0003% @ 1kHz, Unbalanced │ 0.0004% @ 1kHz, Balanced
- IMD SMPTE
- 0.0007% 800Hz 10kHz (4:1) Unbalanced │ 0.0007% 800Hz 10kHz (4:1) Balanced
- Output Impedance
- Unbalanced Out 3.5mm (1ohm) │ Balanced Out 2.5mm (1.6ohm), 4.4mm (1.6ohm)
- Clock Jitter
- 25ps (Typ)
- Reference Clock Jitter
- 70ps
- Capacity
- 5,600mAh 3.8V Li-Polymer
- Charge Time
- about 3.5 hours (9V 1.67A Fast Charging) | 5.5hours (5V 2A General Charging)
- Playback Time
- about 13 hours (Standard: FLAC, 16bit, 44.1kHz, Unbalanced, Vol.40, LCD Off, LED On, Low Gain)
- Built-in Memory
- 64GB [NAND]
- External Memory
- microSD x1 (Max. 1TB)
- Supported OS
- Windows 7,8,10(32/64bit) MAC OS X 10.7
- 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
Engineered to Powerful Perfection
The KANN series is a portable player lineup loved by audiophiles all over the world for its performance focused on high output and clear sound.
KANN MAX, the fourth product in the KANN series, builds on the advantages of the KANN series with higher output and portability.
It provides 4 levels of gain and up to 15Vrms output so that a wide array of headphones can be driven in an optimal state.
By integrating the proven design of the KANN series into a lighter weight and smaller sized player, we have realized both ultra-high output and low noise. KANN MAX features ESS ES9038Q2M Quad-DAC together with Astell&Kern's unique audio technology to provide the best performance you can feel from a portable DAP.
- 4-step gain level with maximum 15Vrms output
- Perfect circuit design with ultra-high output and low noise in an even smaller sized player
- Equipped with ESS ES9038Q2M Quad-DAC that reproduces clear, exceptional output
- TERATON ALPHA, the epitome of Astell&Kern audio technology
- 32-bit/768kHz, Native DSD512 support
- Bluetooth 5.0 and 24-bit codec (Qualcomm® aptX™ HD , LDAC) support
- ReplayGain that automatically adjusts volume to be consistent across tracks
Perfect Circuit Design That Achieves Both Ultra-High Output and Low Noise
As the output increases, so does the noise level.
KANN MAX is equipped with ultra-high output, does not allow any noise and conveys Astell&Kern's philosophy of delivering the original sound as it should be, without compromise. Together, we have completed the perfect circuit design to achieve this.
KANN MAX applies an analog volume controller to deliver a rich dynamic range without loss.
By separately configuring the power supply IC for each Audio Block divided into DAC, Volume, and AMP, KANN MAX is designed to stably supply the power required for each Audio IC. Through this design, the interference ripple noise of the DC-DC power supply (the shaking noise phenomenon that occurs when power is supplied) is removed. Audio noise that can be heard amplified like audio sound in OP AMP is minimized.
Ultra-high output and low noise in the KANN MAX was achieved through different circuit design, including creating and dividing a limited PCB that is the same size as KANN ALPHA into 12 layers and reviewing the physical size of the device applied to the AMP circuit.
Quad-DAC Sound That Reproduces Clear and Overwhelming Sound Output
KANN MAX is the first player in the KANN series to be equipped with four ES9038Q2M DACs for high-output performance.
By applying Quad DACs, one DAC can be fully allocated to one channel, so the depth and realism of the sound source can be expressed to the fullest.
Combined with Astell&Kern's amplifier circuit technology that naturally and delicately raises the strengths of the DAC, and the perfect decoding ability of the DAC to deliver the original sound as it is, music output is expressed as the original sound without distortion.
Four DACs applied to KANN MAX, a power supply IC configured for each audio block, and a perfect circuit design produce ultra-high output and low noise, providing you with the best performance and sound that the KANN series is known for.
Gold PVD Output Coating
In order to minimize contact noise from the output jacks, a gold PVD coating method is applied to the headphone connector instead of the typical rings used by other products. This improves both design and function.
32-bit/768kHz, Native DSD512 Support
Bit-to-bit playback is available up to 32-bit/768Hz, and DSD playback is native up to 22.4MHz, for uncompressed sound quality, staying true to the artist’s original intention, in high-resolution and with minimal distortion.
Astell&Kern Audio Technology Forms the TERATON ALPHA Sound Solution
AK ULTIMATE SOUND SOLUTION, TERATON ALPHA
TERATON ALPHA is AK's Ultimate Sound Solution to produce audio playback that is close to the original sound through the audio output interface by use of effective power noise removal, efficient power management and amplification with minimal distortion.
TERATON ALPHA features Astell&Kern's patented technologies, which are the result of tens of thousands of hours of continuous research and development to produce sound close to the original sound the artist and producer intended.
Equipped with Bluetooth 5.0 and Support for Wireless 24-bit aptX™-HD, LDAC Codecs
Bluetooth 5.0 features faster transmission speed and greater range compared to Bluetooth 4.2, therefore providing a more stable wireless connection.
Both LDAC and aptX™ HD is supported to provide audiophiles with high-quality sound even when listening wirelessly.
Wireless Hi-Fi Sound Through BT Sink
The BT Sink function connects the KANN MAX to an external device via Bluetooth, similar to connecting a smartphone with a BT speaker. Music from an external device, such as a smartphone can now be played back in high-quality on the KANN MAX using the BT Sink function.
ReplayGain Automatically and Uniformly Adjusts Playback Volume
ReplayGain, which adjusts sound sources with different volumes to an identical level, has been applied. Now, enjoy your own playlists seamlessly through the ReplayGain feature on KANN MAX.
* ReplayGain supports up to 24bit/192 kHz sound sources.
AK File Drop to enjoy wireless transfers
The new AK File Drop function in the KANN MAX makes files transfers easier and more convenient.
Using AK File Drop, you can freely transfer files wirelessly through a PC, smartphone, or FTP program located on the same network.
Music file management is now possible with a cableless, wireless solution.
Real-Time Information Confirmed by Light
KANN MAX features a LED volume wheel which displays various playback information, including volume level and bit-rate of the track currently playing.
* LED can be turned on or off according to user setting.
DESIGN
KANN MAX has been visualized as Maximum while inheriting the bold concept of the KANN series to capture the overflowing horsepower of a high-performance sports car and the intense power of a rocket engine.
While the existing KANN series image was a heavy and strong image like an off-road car, with KANN MAX, we wanted to continue the identity of the Astell&Kern KANN lineup while boasting a thinner size and high-power performance like a high-performance sports car.
The slimmer shape is emphasized with the hexagonal top line that narrows sharply from the bottom up, and the hairline treatment on the back expresses the sense of speed and shows confidence that it can produce powerful output.
The wheel protectors wrapped around the volume wheel radiate sparks in the shape of a powerful engine mounted on them, giving off a strong image that looks like it will pop out at any moment.
The KANN MAX is made of an aluminum body, and is available in an Anthracite Gray color model that inherits the signature color of Astell&Kern, and a limited edition of the Brown Mud color.
The KANN MAX Brown Mud model is produced in limited quantities, and the identity of the KANN series with its bold and heavy concept is enhanced using this bold color and look. Experience the identity of the KANN series with the delicate and sophisticated design of the Anthracite Gray color model, and the Brown Mud color model with strength and luxury.
Verified Dealers
Online Dealers
All Dealers
Zoom out the map to see more dealers
Authorized dealers for Astell & Kern KANN MAX
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- Advanced MP3 Players — online and in-store — Musselburgh, Scotland, United Kingdom (website)
- ALAIN CHOUKROUN — online and in-store — Paris, Île-de-France, France (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- American Sound — in-store — Richmond Hill, Ontario, Canada (website)
- Analogue Seduction — online and in-store — Whittlesey, England, United Kingdom (website)
- Anquan — online and in-store — Glika Nera, Greece (website)
- Area Hifi — online and in-store — L'Eixample, Comunidad Valenciana, Spain (website)
- Audio 46 — online and in-store — New York, New York, United States (website)
- Audio Advice — online and in-store — Raleigh, North Carolina, United States (website)
and 69 more verified dealers