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Headphone and Portable Audio Specialists

Astell & Kern AK240 Portable MQS Music Player


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Astell&Kern AK240 at Bristol Sound and Vision Show 


The Astell&Kern AK240 MQS Portable Music Player is the latest in a long line of ultra high quality portable music players! Offering 256GB of built in storage and 1 upgradable microSD card slot makes up to 384GB of storage for the AK240 making it ideal for carrying around your music collection. 

The AK240 features a dual-core processor which allows the player to handle multiple requests and play high-resolution audio files with no lag, and users will also be able to connect to music download sites and download directly to the player or stream music from their PC from the local network.

Featuring a massive 3.31in AMOLED touchscreen with 800x480 resolution the AK240 offers enough screen real estate to access your music collection with ease and with a step up from the Wolfson chipsets used in the AK100 and AK120 the AK240 uses dual Cirrus Logic 4398 DAC which feature native DSD support – including DSD64 and DSD128 files.


  Astell & Kern AK240 
Color Gunmetal
Body Material Duralumin (Aircraft grade)
Display 3.31-inch WVGA (480 x800) AMOLED capacitive
File format WAV, FLAC, WMA, MP3, OGG, APE (Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
Sampling rate FLAC, WAV, ALAC, AIFF: 8kHz ~ 192kHz (8/16/24/32bit (float / Integer))
* 32bit integer is down-converted to a 24bit
  DSD native: DSD64 (1bit 2.8MHz), stereo / DSD128 (1bit 5.6MHz), stereo
Output Level Unbalanced 2.1Vrms + 2.1Vrms / balance 2.3Vrms + 2.3Vrms (no load)
Decode Up to 32bit (float / Integer) / 192kHz bit to bit decode
* 32bit integer is down-converted to a 24bit
Input terminal And data transfer (charging USB micro-B input (PC & MAC)
Connection mode MTP (Media Device)
Output terminal (2.5mm, 4 contacts only) (3.5mm) / optical digital output (3.5mm) / balanced output headphone out
Wi-Fi IEEE 802.11 b / g / n (2.4GHz)
Bluetooth V4.0 (A2DP/AVRCP)
Size 66mm [W] x 107mm [H] x 17.5mm [D]
Weight 185g
Other Features Firmware upgrade (OTA)
Frequency characteristic ± 0.023dB (20Hz ~ 20kHz) unbalanced balance ± 0.3dB (10Hz ~ 70kHz) unbalanced balance
S / N ratio (Unbalanced 1kHz/0dB, 48kHz/24bit, no load) 116dB
(Balance 1kHz/0dB, 48kHz/24bit, no load) 117dB
Crosstalk (Unbalanced 1kHz/0dB, 48kHz/24bit, no load) 130dB
(Balance 1kHz/0dB, 48kHz/24bit, no load) 135dB
THD + N (Unbalanced 1kHz/0dB, 48kHz/24bit, no load) 0.0007%
(Balance 1kHz/0dB, 48kHz/24bit, no load) 0.0005%
IMD 0.0004% (unbalanced 800Hz 10kHz (4:1))
0.0003% (balance 800Hz 10kHz (4:1))
Output Impedance
Clock jitter 50ps (Typ)
Embedded memory Including the 256GB NAND flash * system area
Expansion slot microSD (up to 128GB) x 1
Battery 3,250 mAh 3.7V lithium polymer battery
Support OS Windows ® XP, Windows ® Vista, Windows ® 7,8 (32/64bit)
10.6.5. Above MAC OS X
Your country is set to: United States
Shipping method Delivery Time Cost

Please be advised that we may upgrade your delivery to a better service if we deem it appropriate to designated destinations at no additional cost. Please view our returns policy.
*Quoted delivery times are estimates and apply to normal working days for in stock items.
Astell and Kern