AK380
The AK380 is a portable digital audio player with dual AKM AK4490 DACs and a duralumin body. It plays PCM up to 32-bit/384kHz and native DSD up to 11.2MHz, and it targets listeners who want high-resolution playback with balanced output.
- Dual AKM AK4490 DACs
- 32-bit/384kHz PCM and native DSD256 (11.2MHz)
- 20-band parametric EQ with 0.01dB steps
- 200 femtosecond VCXO reference clock
- 256GB built-in memory plus one microSD slot
- 3.5mm, 2.5mm balanced and optical outputs
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The AK380 is a portable high-resolution music player built around two AKM AK4490 DACs. Its circuitry handles 32-bit data natively, so PCM files up to 32-bit/384kHz and DSD256 (11.2MHz) play without down-sampling. A dedicated audio DSP drives a 20-band parametric equalizer with 0.01dB steps and Q adjustment. The EQ works with PCM from 8kHz to 192kHz at 8, 16 and 24 bits, but not with DSD or 32-bit audio. A 200 femtosecond VCXO reference clock keeps jitter low.
The body is aircraft-grade duralumin and has a 4-inch WVGA touchscreen. The home button is a pressure-sensitive metal capacitive touch pad. The player has 256GB of built-in NAND storage and one microSD slot for cards up to 256GB. A 3,400mAh Li-Polymer battery powers it, and firmware updates arrive over the air via Wi-Fi.
Outputs are a 3.5mm headphone jack, a 3.5mm optical output and a 2.5mm balanced output. The balanced output only supports 4-pole connectors. A Micro-B USB port handles charging and data transfer to Windows and Mac computers. The AK Connect app, which is DLNA-based, is available for phones and tablets. The player can also be expanded with the AK380 Amp, the AK380 Cradle and a CD ripper accessory.
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Specifiche
- Marca
- Astell&Kern
- Modello
- AK380
- Categoria
- Hi-Fi e audio domestico › Lettori
Audio
- DAC
- AKM AK4490 x2 (Dual DAC)
- Decoding
- Support up to 32bit / 384kHz Bit to Bit Decoding
- 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
- Supported audio formats
- WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF
- Output level
- Unbalance 2.2Vrms / Balance 2.3Vrms (Condition No Load)
- Frequency response (20Hz~20kHz)
- ±0.053dB Unbalance & Balance
- Frequency response (10Hz~70kHz)
- ±0.56dB Unbalance / ±0.55dB Balance
- Signal to noise ratio
- 116dB @ 1kHz, Unbalance / 117dB @ 1kHz, Balance
- Crosstalk
- 130dB @ 1kHz, Unbalance / 135dB @ 1kHz, Balance
- THD+N
- 0.0008% @ 1kHz, Unbalance / 0.0007% @ 1kHz, Balance
- IMD SMPTE
- 0.0007% 800Hz 10kHz(4:1) Unbalance / 0.0006% 800Hz 10kHz(4:1) Balance
- Output impedance
- Balanced out 2.5mm (1ohm) / PHONES 3.5mm (2ohm)
- Clock jitter
- 30ps(Typ)
- Reference clock jitter
- 200 Femto Seconds
Inputs
- Input
- USB Micro-B input (for charging & data transfer (PC & MAC)) / Connection Mode : MTP (Media Device)
Outputs
- Outputs
- PHONES (3.5mm) / Optical Out (3.5mm) / Balanced Out (2.5mm, only 4-pole supported)
Connectivity
- Wi-Fi
- 802.11 b/g/n (2.4GHz)
- Firmware upgrades
- Supported (OTA)
Storage
- Built-in memory
- 256GB [NAND]
- External memory
- microSD (Max 256GB) x1
Power
- Battery
- 3,400mAh 3.7V Li-Polymer Battery
Physical
- Display
- 4inch WVGA (480 x 800) Touchscreen
- Body material
- Aircraft Grade Duralumin
- Body color
- Meteoric Titan, Black
- Dimensions
- 3.14 " (79.8 mm) [W] x 4.42 " (112.4 mm) [H] x 0.70 " (17.9 mm) [D]
- Weight
- 8.11 oz (230 g)
Software
- Supported OS (computer)
- Windows XP, Windows 7,8,10 (32/64bit), MAC OS X 10.7 and up