Astell&Kern AK380 Portable Hi-Fi Audio System - headphones.com

Astell&Kern AK380 Portable Hi-Fi Audio System

Color
Black

  • The AK380 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 AKM AK4490 chip that allows for native DSD playback, meaning it does not need to convert DSD files to WAV prior to analog conversion.

    The AK380 can be controlled via its 4.0" WVGA 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.

    32-bit 384 kHz Bit-to-Bit Playback

    • All of the AK380’s circuit design, including the digital-analog converter (DAC), is ready for 32-bit processing to handle 32-bit music natively

      The result is the AK380 plays up to 32-bit, 384 kHz, any 24-bit music files, or double layer DSD 5.6MHz natively, without down sampling, conversion, or compression

    PEQ (Parametric EQ)

    • A parametric equalizer (PEQ) was implemented in the AK380 to deliver detailed adjustment of the original sound, and an audio digital signal processor (DSP) was added to aid in this process
    • This frees up CPU cycles previously needed for calculating graphic equalizers (GEQ), allowing more detailed and accurate calculations via the dedicated DSP
    • The audio DSP expands the existing 10-band, ±0.5 dB graphic equalizer (GEQ) to 20-band, ±0.1 dB to more precisely adjust the frequency and gain (dB) as well as more accurately specify the frequency range via Q value adjustments
    • 20-band PEQ frequency values: 30 Hz, 45 Hz, 60 Hz, 90 Hz, 120 Hz, 180 Hz, 250 Hz, 380 Hz, 500 Hz, 750 Hz, 1 kHz, 1.5 kHz, 2 kHz, 3 kHz, 4 kHz, 6 kHz, 8 kHz, 12 kHz, 14 kHz, 18 kHz

    Equipped With a Femto Clock to Deliver True Original Sound

    • Astell&Kern implemented a voltage-controlled crystal oscillator (VCXO) high-precision clock with a reference jitter value of 200 femto seconds
    • Femto clocks are commonly used in high-end audio systems, and the clock is measured in high-precision femtosecond units (one quadrillionth of a second)
    • The AK380 utilizes a VCXO, or a voltage-controlled crystal oscillator, is a type of crystal oscillation device that creates oscillation frequencies. External environmental stimuli, which in this case mean voltage inputs, influence the frequency value. Adjustments to the voltage input tunes a precise frequency value
    • By utilizing a femto clock, the AK380 is able to create a more accurate frequency value and make fine jitter corrections. As a result, the AK380 faithfully reproduces analog sound closer than ever to the original source when transmitting a digital signal as an analog signal

    AK Connect App

    • Astell&Kern has further enhanced DLNA functionality via the AK Connect app
    • Wireless networking DLNA (version 1.0) connects to a NAS or PC, and is easily controlled with a smartphone or tablet through AK Connect
    • Source files on a PC or NAS can be freely transferred and streamed without the hassle of turning on the computer and physically connecting with a cable
    • If on the same access point (AP) network, music files on a PC or NAS can be played back via DLNA
    • DMP (Digital Media Player): Finds a list of content on a media server for selection and playback
    • DMC (Digital Media Controller): Finds a list of content on a media server and establishes a connection to a playback-capable device (renderer). By default, a DMC establishes a connection between a media server and media renderer and controls content playback-related operations
    • DMS (Digital Media Server = Network Server): Actually stores the media content to be shared. When connected to a network, the DMS transmits/distributes the media content for other devices to stream or download
    • DMR (Digital Media Renderer = Network Player): Connects to a media server via media controller for content playback

    Pressure-Sensitive Metal Capacitive Touch

    • The AK380 utilizes a metal capacitive touch interface. The pressure-sensitive Metal Touch home button responds to fine pressure changes so users operate the device with just a light touch on the metallic pad

    More Expandable Options

    • The AK380 offers great expandable options through its micro USB connection and balanced out ports on the bottom of the unit
    • The AK380's functionality is expandable by connecting to a variety of devices
    • You can increase the output and connect to a greater variety of high-impedance professional headphones through the optional AK380 Amp
    • The optional AK380 Cradle features balanced output in addition to USB data transfer and charging capabilities
    • The optional AK380 CD-ROM drive rips audio CDs directly to the AK380

    Design Concept

    • The AK380’s design was inspired by “light” and “shadow”
    • While the design of the AK240 captured a moment in time of light and shadow, the AK380 is designed to express the change of time with more angles on its body. You will notice the different angles on its surface as you view the AK380
    • Astell&Kern believe that the beauty of the design shall reflect what the AK380 can do with music. As different angles of light casts different shadows, different music will give you a variety of emotions
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