본문으로 건너뛰기

Astell&Kern

{{ content }}

AK380 Copper's First Accessory, AMP

The primary goal of Astell&Kern has always been to deliver the original sound.

We're proud to introduce the AK380 AMP Copper, 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 Copper,
the first accessory to complement the AK380 Copper.

A New Approach to Music,
AK380 AMP Copper

Astell&Kern aims to match AK380 Copper and deliver the acoustic characteristics of raw material, copper through AMP as well.

Characteristics of raw material, Copper
"Sound with a sense of depth"
"Sound with a sense of weight"
"Sound with a greater balance"

Advantages of AK380 AMP
"Expandable AMP with a harmonious combination of raw material and design"
"HIGH GAIN output of 8.1 Vrms"

A combination of AK380 Copper and AMP
Copper extends the characteristics of raw material, copper to the player and AMP as well to deliver better sound quality
than the old AK380 duralumin and AMP aluminium combination.

HIGH GAIN

AK380 AMP Copper supports 8.1 VRMS output when connected
via high-gain balanced output.

Low Gain High Gain

Unbalance 2.1 Vrms / Balance 2.1 Vrms

(Condition No Load)

Unbalance 4.1 Vrms / Balance 8.1 Vrms

(Condition No Load)

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 Copper's settings.

- When the AK380 AMP Copper is connected, USB DAC and optical out functionalities through the
amplifier are disabled.

Amp powered on Earphones / headphones disconnected Gain changed

Y

Y

Y

AUDIO BLOCK

Micro USB

Digital Control Signal

4 pin

L+

L-

R+

R-

Main Board

Control Port Volume Control

L+

L-

R+

R-

L+

L-

R+

R-

Balance AMP 1
Balance AMP 2
Unbalance AMP

 

 

 

 

 

 

Balance
Out
Unbalance
Out

3,400 mAh
Large-capacity Battery

An amplifier, which increases audio output, consumes a great amount of energy.
Thus, the AK380 AMP Copper features a 3,400 mAh large-capacity battery
- identical to the one in the AK380 Copper itself - to support up to nine hours of
continuous unbalanced-output playback.

AK380 AMP Copper
vs.
Other AMP

The AK380 AMP Copper boasts convenient portability.
The many points of discomfort in conventional amplifiers have been addressed
by adopting an integrated design for greater convenience.

Charging
AK380 AMP Copper Other AMP

AK380 Copper + AK380 AMP Copper simultaneous charging.

Separate charging of device and amp.

Connections
AK380 AMP Copper Other AMP

Separate cable not required due to integrated design.

Separate cable for connecting device and amp.

Easy connection using a Screw Cap.

Device and amp connection via separate band.

Volume Control
AK380 AMP Copper Other AMP

Integrated volume control using the AK380 Copper.

Separate volume controls for device and amp.

Integrated Design

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

Continuing this design concept, the AK380 AMP Copper 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 Copper is repeated on the amplifier's rear light for design continuity.

The area of the amplifier in contact with the AK380 Copper'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 Copper was designed from the ground up as a single entity when combined with the AK380 Copper. 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.

Specification

General Specifications
Model
PAF11 / AK380 AMP Copper
Body Color
Copper
Body Material
Copper
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
10.30 oz (292 g)
Audio Performance
Frequency Response
[Low 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
[Low Gain] 110 dB @ 1 kHz, Unbalanced / 110 dB @ 1 kHz, Balanced
[High Gain] 113 dB @ 1 kHz, Unbalanced / 114 dB @ 1 kHz, Balanced
Crosstalk
[Low Gain] 108 dB @ 1 kHz, Unbalanced / 130 dB @ 1 kHz, Balanced
[High Gain] 108 dB @ 1 kHz, Unbalanced / 128 dB @ 1 kHz, Balanced
  • When AK380 Copper and AK380 AMP Copper are assembled together, the surface may get very hot during music playback if it is connected to a wall-charger at the same time.