User Manual for Astell&Kern ACRO L1000 Desktop Headphone Amplifier and DAC Click to enlarge the picture
Contents of the user manual for the Astell&Kern ACRO L1000 Desktop Headphone Amplifier
- Product category: Headphone Amplifiers Astell&Kern
- Brand: Astell&Kern
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Astell&Kern Headphone Amplifiers
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User manual for the Astell&Kern ACRO L1000 Desktop Headphone Amplifier contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Astell&Kern product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Astell&Kern user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Astell&Kern product will considerably shorten its lifespan!
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Product description The gunmetal colored Astell&Kern ACRO L1000 is a high-quality desktop headphone and speaker amplifier with an integrated dual DAC AKM AK4490 chip that allows for 32-bit/384 kHz PCM playback as well as native DSD256 playback. The player can connect to Mac or Windows computers via USB and integrates with a variety of A&K players including the AK380, AK320, AK300, KANN, AK70, AK70 MKII, and SP1000.
The amp is angled 30°, and the all-aluminum body maximizes sound clarity and adds aesthetics. The large, knurled, and ergonomic volume control is designed to fit your hand, offering a sense of control while you take command of your music playlist. The side of the enclosure provides several headphone ports including a 1/4", 1/8" and 2mm balanced headphone output, while the rear of the unit offers a balanced 4-pin XLR connector and a pair of speaker binding posts, which provide 15W of power to each speaker. A filter button allows you to toggle through three presets; Neutral, Bass Boost, and High Gain. The A&K ACRO L1000 ships with a power cord, power adapter, and micro-USB cable. Note: If using an A&K player with the ACRO L1000, an OTG-capable USB cable is required and sold separately. - Dual High-End DAC
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- The ACRO L1000 features two AK4490 DAC chips, the same DACs found in AK380 players
- The dual DACs deliver consistent and high-performance digital music playback with remarkable resolution and rich spatial sound
- Dual-DAC Implementation: Redesigned to efficiently perform using an updated AMP circuit design, which delivers master-quality sound with minimal distortion
- PCM and Native DSD Playback
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- 32-Bit CPU: Provides accurate processing of digital audio playback without compromising audio quality
- PCM Playback: Up to 32-bit / 384 kHz, bit-to-bit high-resolution with no down-sampling
- DSD Playback: Native DSD256 / 11.2 MHz playback supported without conversion
- Various Audio Output Options
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- Universal: 1/8" and 1/4" jacks
- Headphone or Earphone: 2.5mm / 4-pole XLR balanced jack
- Speaker: Binding posts offering a maximum audio output of up to 15W per channel at 4 ohms
- Connections to Computers and Other Digital Sources
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- Connected to Windows or Mac computer via the included micro-USB cable
- Connect an Astell&Kern portable player as a source device and give yourself a powerful audio experience
- Compatible with: AK380, AK320, AK300, KANN, AK70, AK70 MKII, or SP1000 players
- An OTG-capable USB cable is required for use with A&K players
- Audio Preferences
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- Three Sound Settings:
- Neutral: Unprocessed, natural sound
- Bass-Boost: Offers deeper bass
- High-Gain: Provides more power output
- Choose different sound filters by pressing a button on L1000
- LED color changes with the mode selected
- Blue LED: Neutral and default sound
- Green LED: Bass-Boost filter
- Red LED: High-Gain filter
- Design
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- Aluminum Body: Maximizes sound clarity, adds aesthetics, and allows for an ergonomic volume control
- Angle: 30° angle offers a natural fit for everyday use
- Volume Wheel: Designed to fit for your hand, while the knurled pattern offers a feeling of being in control of your music
- Accent LED Rim Lights: Adds subtle ambience around the volume wheel, while showing the status of the music playback volume
UPC: 821566016508 In the Box Astell&Kern ACRO L1000 Desktop Headphone Amplifier and DAC (Gunmetal) Power Cord Power Adapter Micro-USB Cable Limited 1-Year Warranty Table of Contents
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Technical parametersAstell&Kern ACRO L1000 Specs | Material of Construction | Aluminum | | DAC | 2 x AKM AK4490 | | Inputs | Windows / Mac: USB micro-B | | Output | Headphones:
Unbalanced: 1/8" / 3.5 mm
Unbalanced: 1/4" / 6.35 mm
Balanced: 0.10" / 2.50 mm (only 4-pole supported); 4-pin balanced XLR
Speaker: 2 x binding posts (L/R) | | Sample Rate | PCM: 8 to 384 kHz (8-/16-/24-/32-bits per Sample)
DSD Native (Stereo):
DSD64 (1-bit 2.8 MHz)
DSD128 (1-bit 5.6 MHz)
DSD256 (1-bit 11.2 MHz) | | Output Level | Unbalanced: 6 Vrms, no load
Balance: 8.5 Vrms, no load | | Audio Performance | Headphones / Earphones
Frequency Response (Unbalanced and Balanced):
±0.064 dB (Condition: 20 Hz to 20 kHz)
±0.73 dB (Condition: 10 Hz to 70 kHz)
Signal to Noise Ratio: 115 dB at 1 kHz, unbalanced / 116 dB at 1 kHz, balanced
Crosstalk: 108 dB at 1 kHz, unbalanced / 138 dB at 1 kHz, balanced
THD+N: 0.003% at 1 kHz, unbalanced / 0.001% at 1 kHz, balanced
Speakers
Output: 2 x 15 W (4 Ohms)
Frequency Response: ±0.32 dB (Condition: 20 Hz to 20 kHz, 4 Ohms, 1 kHz, 10% THD)
Signal to Noise Ratio: 95 dB (Condition: 4 Ohms, 1 kHz, 10% THD)
Crosstalk: 110 dB (Condition: 4 Ohms, 1 kHz, 10% THD) | | Dimensions (W × H × D) | 4.44 x 6.29 x 4.43" / 112.78 x 159.77 x 112.52 mm | | Weight | 2.0 lb / 0.9 kg | | | | Package Weight | 4.0 lb | | Box Dimensions (LxWxH) | 8.1 x 6.1 x 5.6" |
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