The silver AK240 Portable Hi-Fi Audio System from Astell&Kern is a media player and USB DAC that supports a wide variety of audio formats including WAV, FLAC, ACC, MP3, WMA, OGG, and more in addition to DSD. It is equipped with a dual DAC Cirrus Logic CS4398 chip that allows for native DSD playback, meaning it does not need to convert DSD files to WAV prior to analog conversion.
The AK240 can be controlled via its 3.3-inch AMOLED touch screen and features a physical volume knob. The unit has 256GB of internal storage, and supports microSD cards up to 128GB, for a total of 384GB of potential storage. Thanks to its streaming capabilities, you are not limited to playback of songs you have on your device, as it can stream tracks from your Mac or PC connected to the same wireless network.
Astell & Kern AK240 Portable Hi-Fi Audio System Highlights
- Media Player & USB DAC
- Supports WAV, FLAC, AAC, MP3, & More
- Native DSD Playback
- 3.31" AMOLED Touch Screen Control
- Streams Songs from Your Computer
- 256GB Internal Storage
- microSD Card Support up to 128GB
- Balanced Output
- Cirrus Logic CS4398 DAC Chip
- Includes Leather Case
Astell & Kern AK240 Portable Hi-Fi Audio System In The Box
- Astell&Kern AK240 Portable Hi-Fi Audio System Silver
- USB Cable
|Display||3.31" (84 mm) WVGA (480 x 800) AMOLED touchscreen|
|Supported Audio Formats||WAV, FLAC, WMA, MP3, OGG, APE (Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF|
|Sample Rate||FLAC, WAV, ALAC, AIFF : 8 kHz to 192 kHz (8/16/24-bits per sample) |
DSD Native : DSD 64 (1-bit, 2.8 MHz), Stereo / DSD 128 (1-bit,5.6 MHz)
|Output Level||Unbalanced: 2.1 Vrms (Condition No Load) Balanced: 2.3 Vrms (Condition No Load)|
|DAC||Cirrus Logic CS4398 x2 (Dual DAC)|
|Decoding||Support up to 24-bit/192 kHz bit to bit decoding, DSD 64/128|
|Input||USB Micro-B input (for charging & data transfer, PC & Mac) |
Connection Mode : MTP (Media Device)
|Output||1x 1/8" (3.5 mm) headphone output |
1x 1/8" (3.5 mm) optical output
1x 0.13" (2.5 mm) balanced output (4 pole)
|Wi-Fi||802.11 b/g/n (2.4 GHz)|
|Frequency Response||20 Hz to 20 kHz, ±0.023 dB, balanced and unbalanced |
10 Hz to 70 kHz, ±0.3 dB, balanced and unbalanced
|Signal to Noise Ratio||116 dB @ 1 kHz, unbalanced |
117 dB @ 1 kHz, balanced
|Crosstalk||130 dB @ 1 kHz, unbalanced |
135 dB @ 1 kHz, balanced
|THD + N||0.0007% @ 1 kHz, unbalanced |
0.0005% @ 1 kHz, balanced
|SMPTE||IMD SMPTE: 0.0004% 800 Hz 10 kHz (4:1), unbalanced |
0.0003% 800 Hz 10 kHz (4:1), balanced
|Output Impedance||Balanced 2.5 mm: 1 Ω |
Headphones: 2 Ω
|Jitter||50 ps, typical|
|Battery||Capacity: 3.250 mAh, 3.7 V Li-Polymer battery|
|Memory||Built-In Memory: 256 GB (NAND) |
External: microSD, maximum 128 GB
|Supported Operating System||Windows: XP, 7, 8 (32/64-bit) |
Mac: OS X 10.7 and later
|Dimensions (WxHxD)||2.59 x 4.21 x 0.68" (66.0 x 107.0 x 17.5 mm)|
|Weight||6.5 oz (185 g)|
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|Condition||Sealed / New|
|Delivered Price||Shown at checkout|
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