Astell&Kern SP1000 AMP

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The SP1000 Amplifier module is designed specifically for the SP1000 music player or DAP (digital audio player) to drive full-sized, high-impedance headphones. It offers High Gain output of 10Vrms for Balanced output and 6.2Vrms for Unbalanced output and fits perfectly with your SP1000, adding power and performance.

Main features

  • Supports high-impedance headphones
  • Provides powerful output level
  • Compatible with SP1000
  • Supports high and low gain mode
  • Expansion type design
  • 3,700mAh large-capacity battery

High Gain

The SP1000 AMP offers 10Vrms for Balanced output on the High-Gain setting.

Low Gain
Unbalanced 2.9 Vrms / Balanced 6.2 Vrms
(Condition No Load)
High Gain
Unbalanced 6.2 Vrms / Balanced 10 Vrms
(Condition No Load)

The AMP has been designed to protect your hearing. It adjusts the output every time the AMP is turned on and/or your headphone is disconnected from the AMP. The AMP can be turned on and off easily from the quick settings menu. Gain can be adjusted in the full settings menu.

When the SP1000 AMP is connected to the SP1000, Optical out, USB-DAC, USB-Audio, Line-Out and CD-Ripping functions will not be available.

Improved Output Performance

The SP1000 AMP offers higher power output and better efficiency*, using updated circuitry and audio volume control.

*compared to the AK380 AMP module

power output of the SP1000 AMP compared to the AK380 AMP

3,700 mAh Large-Capacity Battery

The SP1000 AMP is equipped with a 3,700mAh rechargeable battery to provide 9 hours of uninterrupted music playback.

SP1000 AMP supports 9 hours of continuous unbalanced-output playback.

Astell and Kern SP1000 AMP audio block

Simplicity of Integral AMP

The SP1000 AMP offers greater portability when paired with the SP1000 player with its optimal design and fit.

SP1000 AMP design details SP1000 AMP versus other amps

Perfect Unity

The black backing of the AMP represents shadows of the natural materials of the SP1000 and as the wavelengths of the sound splash in every direction, the reflected shadows express a divided silhouette.

The soft blue light surrounds the SP1000 volume wheel and accentuates the beautifully crafted crown pattern as the light shines upon it.

The precise angle of the wheel and the AMP surface, when combined together, has a functional space that does not interfere with the operation of the wheel and conveys the AMP status through the white, blue and red colors.

The SP1000 player locks to the amp, providing a simple and secure connection, giving you the feel of a single, united device.


Astell n Kern Magazine Guide
Astell&Kern Magazine

Guides & Reviews
by Moon Audio


SP1000 AMP
Body Color
Onyx Black / Stainless Steel / Copper
Body Material
Front Deco
Stainless Steel
USB Type-C (for charging)
Connection Mode: MTP (Media Device)
PHONES (3.5mm)
Balanced Out (2.5mm, 4-pole only)
2.98" W x 5.82" H x 0.35" D (75.7mm x 148mm x 9mm)
7.05 oz (200g)


Output Level
[Low Gain] Unbalanced 2.9 Vrms / Balanced 6.2 Vrms (Condition: No Load)
[High Gain] Unbalanced 6.2 Vrms / Balanced 10 Vrms (Condition: No Load)
Frequency Response
[Low Gain] ± 0.06 dB (Condition: 20 Hz - 20 kHz) Unbalanced / Balanced
[High Gain] ± 0.06 dB (Condition: 20 Hz - 20 kHz) Unbalanced / Balanced
Signal to Noise Ratio
[Low Gain] 110 dB @ 1 kHz, Unbalanced / 111 dB @ 1 kHz, Balanced
[High Gain] 111 dB @ 1 kHz, Unbalanced / 111 dB @ 1 kHz, Balanced
[Low Gain] 107 dB @ 1 kHz, Unbalanced / 131 dB @ 1 kHz, Balanced
[High Gain] 107 dB @ 1 kHz, Unbalanced / 131 dB @ 1 kHz, Balanced

Package Includes

  • SP1000 Amplifier
  • USB-C to USB-A Cable
  • Black Leather Case
  • Quick Start Guide
  • Warranty Card

5.0 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great addition for LCD-4
I can now use my SP1000 and Amp with my LCD-4 headphones.
August 29, 2019
1 month ago
Very Impressed
The sound quality of this amp connected to the SP1000 surpassed my expectations. The amp helps raise the ease of driving both efficient and non-efficient drivers ... Making everything notably more relaxed in their presentation. The only downside is that, with the amp, the sp1000/amp combo are heavy and large ... They are not walk-around friendly!
August 9, 2019
2 months ago
Well engineered, great sound quality
The AMP is well engineered, fits well with the SP1000 in the provided case, and is well integrated with the SP1000. The two devices charge as a unit. The combo is a little heavy to be carried around in a pocket but is a good companion on plane flights. It looks like the AMP was anticipated by AK because the fitting to attach the AMP was present in the SP1000 itself.
August 9, 2019
2 months ago
Huge dynamic improvement
Huge improvement over non-Amp SP1000 work.
Same great details with major dynamics added.
Highly recommendable upgrade.
July 25, 2019
2 months ago
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Preorder sp1000 amp? Is it already sold out? Thanks
Michael O on Jun 12, 2019
BEST ANSWER: Preorders excepted now. Expected to arrive by end of June.

Astell&Kern SP1000 Amplifier Unboxing

SP1000 Amp Connection Guide