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.
The AK380 AMP supports 8.1 VRMS output when connected via high-gain balanced output.
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.
- When the AK380 AMP is connected, USB DAC and optical out functionalities through the amplifier are disabled.
Model : AK380 AMP
Body Color : Meteoric Titan
Body Material : Aluminum
Output Level : [Low Gain] Unbalanced 2.1 VRMS /
Balanced 2.1 VRMS (Condition: No Load), [High Gain] Unbalanced 4.1 VRMS /
Balanced 8.1 VRMS (Condition: No Load)
Input : Type-B micro-USB Input (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 : 5.82 oz (165 g)
Frequency Response :
Gain] ±0.06 dB (Condition: 20 Hz – 20 kHz) Unbalanced / ±0.06 dB (Condition: 20
Hz – 20 kHz) Balanced
[High Gain] ±0.03 dB (Condition: 20 Hz – 20 kHz) Unbalanced / ±0.03 dB
(Condition: 20 Hz – 20 kHz) Balanced
Signal to Noise Ratio :
Gain] 110 dB @ 1 kHz, Unbalanced / 110 dB @ 1 kHz, Balanced
[High Gain] 113 dB @ 1 kHz, Unbalanced / 114 dB @ 1 kHz, Balanced
Gain] 108 dB @ 1 kHz, Unbalanced / 130 dB @ 1 kHz, Balanced
[High Gain] 108 dB @ 1 kHz, Unbalanced / 128 dB @ 1 kHz, Balanced