Astell&Kern ACRO L1000 Headphone Amplifier / DAC (Trade in)

Trade in, excellent physical condition and function.

Step up to a new world, ACRO L1000

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.

Design

The design of the ACRO L1000 resembles the 'Golden Ratio' of the Parthenon of Athens. Like the Golden Ratio stays consistent and never changes, Astell&Kern has designed the L1000 to serve the never-changing value of music. Its design signifies something that should never be changed – the original sound, and provides distortion-free sound.

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.

Features

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

Specifications

Model ACRO L1000 / DAM11

Body Colour 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)

Outputs 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

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

THD+N 0.003% @ 1kHz, Unbalance / 0.001% @ 1kHz, Balance

AUDIO PERFORMANCE (SPEAKERS)

Clock Jitter 25ps(Typ)

Reference Clock Jitter 200 Femto Seconds

BATTERY

Output 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)

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