Astell & Kern AK380 AMP Add-On Amplifier Module

Astell & Kern

*Please check with our online customer service team or your local store for stock availability


A portable amp that provides the AK380 with greater power output to drive a wide variety of inefficient headphones and IEMs without the need for added cables and another device to carry.


  • The AK380 AMP was designed as an extension of the light and shadow theme of the AK380.

    Continuing this design concept, the AK380 AMP retains the subtle changes and details in the emitted brilliance as light flows across its surface.
    The diamond pattern engraved into the volume wheel of AK380 is repeated on the amplifier's rear light for design continuity.

    The area of the amplifier in contact with the AK380's volume wheel reproduces the design's angle of reflection for comfortable wheel operation. The amplifier's light shining delicately through the gaps in the reflected surface visually accentuate the music’s mystique.

    Unlike conventional amplifiers, the AK380 AMP was designed from the ground up as a single entity when combined with the AK380. The wheel on the rear of the amplifier that connects the two devices is a representation of the volume wheel seen throughout Astell&Kern products and expresses our unique design identity.
  • 3,400 mAh Large-capacity Battery
    An amplifier, which increases audio output, consumes a great amount of energy.
    Thus, the AK380 AMP features a 3,400 mAh large-capacity battery – identical to the one in the AK380 itself - to support up to nine hours of continuous unbalanced-output playback.
  • High Gain
  • High-gain output is four times greater than low-gain output and supports high-impedance headphones.

    To protect earphones/headphones during high output, the volume is automatically adjusted when the amp is powered on or the earphones/headphones are disconnected.
    Furthermore, the gain can be easily adjusted via the AK380's settings.
  • The primary goal of Astell&Kern has always been to deliver the original sound.

    We're proud to introduce the AK380 AMP, an amplifier that supports high-impedance headphones and high-gain output while remaining faithful to the original sound.

    Expansion-type amplifier with design unity.
    3,400 mAh large-capacity battery.
    8.1 VRMS high-gain balanced output.
    4.1 VRMS unbalanced output.

    Introducing AK380 AMP,
    the first accessory to complement the AK380.
  • Product Name: AK380 AMP

    Model: PAF11

    Body Color: Meteoric Titan

    Body Material: Aluminum

    Output Level:

    Low Gain Unbalance: 2.1 Vrms/ Balance 2.1 Vrms (Condition No Load)
    High Gain Unbalance:  4.1 Vrms/ Balance 8.1 Vrms (Condition No Load)


    USB Micro-B input(for charging & data transfer (PC & MAC))/

    Connection Mode: MTP(Media Device)

    Outputs: PHONES(3.5mm) / Balanced Out(2.5mm, only 4-pole supported)

    Dimensions: 3.17”(80.7 mm)[W] x 5.01”(128.4 mm)[H] x 0.40”(10.3 mm)[D]

    Weight: 5.82oz (165g)

    Frequency Response

    Low Gain: ±0.06dB (Condition: 20Hz~20kHz) Unbalance / ±0.06dB (Condition: 20Hz~20kHz) Balance

    High Gain: ±0.03dB (Condition: 20Hz~20kHz) Unbalance / ±0.03dB (Condition: 20Hz~20kHz) Balance


    Low Gain: 110dB @ 1kHz, Unbalance/ 110dB @ 1kHz, Balance
    High Gain: 113dB @ 1kHz, Unbalance/ 114dB @ 1kHz, Balance


    Low Gain: 108dB @ 1kHz, Unbalance/ 130dB @ 1kHz, Balance
    High Gain: 108dB @ 1kHz, Unbalance/ 128dB @ 1kHz, Balance