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ACRO L1000

Step up to a new world, ACRO L1000 

Dual High-End AK4490 DACs Built-in PCM playback up to 32bit/384kHz, Native DSD 256 playback supported
Support for various audio output options for Hi-Fi Audiophiles
15W Audio Output per Channel for Stereo Speakers
Filters for Different Audio Preferences (Bass-boost, High-Gain)
Optimal design for both usability and sound playback

Astell&Kern introduces a new sub-brand of desktop audio products called ACRO.

Astell&Kern has taken their expertise in designing best-selling, world-class portable audio devices and put that knowledge in to the first desktop audio product, the ACRO L1000.

The ACRO L1000 is the first Desktop Headphone Amplifier from Astell&Kern.

Dual High-End AK4490 DACs Built-in

The ACRO L1000 features two AK4490 DAC chips, the same proven performance DACs found in the popular and successful Astell&Kern AK380 players.

The Dual DACs deliver proven consistent and high performance digital music playback. With the Dual DAC configuration, the ACRO L1000 delivers superb resolution and rich spatial sound.

The Dual-DAC implementation is re-designed to perform at its best efficiency with the new AMP circuit design in the L1000.

This new design allows the ACRO L1000 to deliver master-quality sound with minimal distortion.

PCM playback up to 32bit/384kHz, Native DSD 256 playback supported

The L1000 plays back bit-to-bit high-resolution PCM digital audio up to 32bits.

A 32-bit CPU has also been added for the most accurate processing of digital audio playback, without compromising audio quality.

As a result, the ACRO L1000 can reproduce up to 32bit/384kHz PCM as originally recorded, with no down-sampling. The L1000 also supports native DSD playback up to 11.2MHz, without conversion.

Support for various audio output options for Hi-Fi Audiophiles

The ACRO L1000 provides multiple audio output options to fit your needs.
It can be connected to a universal 3.5mm/6.3mm jack, or to a headphone or earphone with a 2.5mm/4-pole XLR balanced jack.

Unlike other headphone amplifiers, the ACRO L1000 features speaker binding posts offering a maximum audio output of up to 15W per channel at 4 ohms.

  • Please note. You must lower the volume to zero before connecting any sensitive In-Ear-Monitors or headphones to protect your hearing and your equipment.
  • – When connecting more than two earphones/headphones, the sound is output to the earphones/headphones of the last connected terminal.
  • – When connecting to the XLR balanced terminal, all earphone/headphone jacks on the side of the product should not be connected.

Filters for Different Audio Preferences

  • The ACRO L1000 provides three sound settings: Neutral, Bass-Boost, and High-Gain filters to suit your preferences.
    The Bass-Boost filter brings you deeper bass. The High-Gain filter provides more power output.
    You can switch the different sound filters by simple pressing a button of L1000.
    The color of the LED light changes with the mode selected.
  • – Default Setting:
    Blue LED for Neutral and default sound,
    Green LED for Bass-Boost filter,
    and Red LED for High-Gain filter.

ACRO L1000 Design Concept

As it sits on a desk, the 30-degree angle will naturally fit your everyday use.
The size of volume wheel is designed to fit for your hand, and the knurled pattern allows the perfect feel of being in control of your music.

The accent of the LED rim lights around the volume wheel adds a subtle, yet comfortable music listening ambience, and the 12 dots of LED shows the status of music playback volume.

Specification ACRO L1000

Model  ACRO L1000 / DAM11

Body Color  Gun Metal

Body Material  Aluminum

Dimensions  4.44 ”(112.87 mm) [W] x 6.29 ”(160 mm) [H] x 4.43 ”(112.75 mm) [D]

Weight  32.45 oz (about 920.7g)

DAC  AKM AK4490 x2 (Dual DAC)

Inputs  USB Micro-B input (PC/MAC)


PHONES Out(3.5mm, 6.3mm), Balanced Out(2.5mm-only 4-pole supported, 4-pin Balanced XLR),
Speaker out (L/R binding posts x2)

Sample rate

PCM: 8kHz ~ 384kHz (8/16/24/32bits per Sample)
DSD Native: DSD64 (1bit 2.8MHz), Stereo / DSD128 (1bit 5.6MHz), Stereo / DSD256 (1bit 11.2MHz), Stereo

Output Level

Unbalance 6Vrms / Balance 8.5Vrms (Condition No Load)

Power Supply

12V adaptor

Audio Performance (Headphones / Earphones)

Frequency Response

±0.064dB (Condition: 20Hz~20kHz) Unbalance & Balance
/ ±0.73dB (Condition: 10Hz~70kHz) Unbalance & Balance

Signal to Noise Ratio

115dB @ 1kHz, Unbalance / 116dB @ 1kHz, Balance


108dB @ 1kHz, Unbalance / 138dB @ 1kHz, Balance


0.003% @ 1kHz, Unbalance / 0.001% @ 1kHz, Balance

Audio Performance (Speakers)


15W x2 (4ohm)

Frequency Response

±0.32dB (Condition: 20Hz~20kHz) (Condition: 4ohm, 1kHz, 10% THD)

Signal to Noise Ratio

95dB (Condition: 4ohm, 1kHz, 10% THD)


110dB (Condition: 4ohm, 1kHz, 10% THD)

ACRO L1000