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Key Features
The Astell&Kern ACRO CA1000T Headphone Amplifier & DAC is a completely portable, all-in-one system for headphone enthusiasts. A cornucopia of connectivity options are available for inclusion in audiophile-grade desktop systems, with inputs and outputs that cover links from source to speaker. Monitor everything from the comprehensive LCD touchscreen and hear the difference.
The CA1000T uses advanced decoding support, ES9039MPRO dual-DACs, and a Twin Triode KORG Nutube tube design to maximise your listening experience with high-resolution conversion capabilities. Through sensitive in-ear monitors, power-hungry headphones and everything in between, find the joy in crisp, dynamic listening.
Product Ref: 250928
First and foremost, the Astell&Kern ACRO CA1000T’s most immediately eye-catching feature is its pure level of connectivity. The forward-facing headphone ports include options for unbalanced 6.35mm and 3.5mm as well as balanced 4.4mm and 2.5mm. No matter how you want to listen or what you want to listen to, you can also find digital inputs, including optical, coaxial and USB-C, as well as Bluetooth and WiFi wireless connection with lossless hi-res aptX HD and LDAC formats. An XLR and analogue output are al to connect to external speakers.
Experience exquisite audio anywhere. The ACRO CA1000T uses dual ES9039MPRO DACs, offering precision signal conversion with completely minimised noise, jitter and distortion. Choose between seven DAC filters to offer a sound response that is more to your liking, ranging from smooth roll-off, punchier bass or higher transience. The DAC features built-in stereo hardware MQA renderer as well as support for native DSD512 and up to 32bit/768kHz sampling. The CA1000T also supports network streaming through AK Connect and is certified Roon Ready.
The dual DAC design has been paired with two Twin Triode KORG Nutube tubes, offering heightened sound regardless of the CA1000T’s compact size. The twin circuit balances the signal path between right a left hand channels and delivers an overall more natural end result. Based entirely on your tastes, Astell&Kern have implanted advanced customisability, with three distinct amp modes. Select between TUBE AMP, OP AMP, or the new HYPBRID AMP modes. These options let you balance the amp’s audio characteristics between hi-res and a more retro expression.
Model | ACRO CA1000T |
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Body Colour | Rich Gray |
Body Material | Aluminium |
Display | 4.1-inch, 720 x 1280 touch screen |
Supported Audio Formats | WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA |
Sample rate | PCM : 8kHz 768kHz (8/16/24/32bits per Sample)DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), DSD512(1bit, 22.4MHz) Stereo |
Output Level (Headphone Out) | [Low] Unbalanced 2Vrms / Balanced 4Vrms (Condition No Load)[Mid] Unbalanced 4Vrms / Balanced 8Vrms (Condition No Load)[High] Unbalanced 6Vrms / Balanced 12Vrms (Condition No Load)[Super] Unbalanced 8Vrms / Balanced 15Vrms (Condition No Load) |
Output Level (RCA Out) | 2Vrms (Condition No Load) |
Output Level (XLR Out) | 4Vrms (Condition No Load) |
Recommended headphone impedance | 32 ohm – 600 ohm |
CPU | Quad-Core |
DAC | ESS ES9039MPRO x2 (Dual-DAC) |
Vacuum Tube | KORG Nutube 6P1 x2 |
Decoding | Support up to 32bit / 768kHz Bit to Bit playback |
Headphone Outputs | Unbalanced (3.5mm, 6.35mm) / Balanced (2.5mm, 4.4mm) |
Analog Inputs | 4.4mm x1 |
Analog Outputs | XLR (Stereo pair) x1, RCA (Stereo pair) x1 |
Digital Inputs | Coaxial x1, Optical x1, USB(Type-C) x1 |
Digital Outputs | Optical(3.5mm) x1, USB(Type-C) x1 |
Wi-Fi | 802.11 a/b/g/n/ac (2.4/5GHz) |
Bluetooth | V5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC) |
Dimensions (W x D x H) | 104.9 x 155.8 x 45mm |
Weight | Approx. 980g |
Feature Enhancements | Firmware upgrade supported (OTA) |
Operating Temperature | 0°C + 40°C |
Frequency Response | ±0.031dB (Condition : 20Hz 20kHz) Unbalanced / ±0.029dB (Condition : 20Hz 20kHz) Balanced /±0.033dB (Condition : 20Hz 20kHz) RCA / ±0.002dB (Condition : 20Hz 20kHz) XLR±0.079dB (Condition : 20Hz 70kHz) Unbalanced / ±0.029dB (Condition : 20Hz 70kHz) Balanced /±0.080dB (Condition : 20Hz 70kHz) RCA / ±0.008dB (Condition : 20Hz 70kHz) XLR |
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S/N | 108dB @ 1kHz, Unbalanced / 112dB @ 1kHz, Balanced / 121dB @ 1kHz, RCA / 128dB @ 1kHz, XLR |
Crosstalk | -115dB @ 1kHz, Unbalanced / -112dB @ 1kHz, Balanced / -138dB @ 1kHz, RCA / -145dB @ 1kHz, XLR |
THD+N | 0.004 @ 1kHz, Unbalanced / 0.002 @ 1kHz, Balanced / 0.0005 @ 1kHz, RCA / 0.0003 @ 1kHz, XLR |
IMD SMPTE | 0.0007 800Hz 10kHz (4:1) Unbalanced / 0.0007 800Hz 10kHz (4:1) Balanced /0.0007 800Hz 10kHz (4:1) RCA / /0.0007 800Hz 10kHz (4:1) XLR 10kHz (4:1) RCA / /0.0007 800Hz 10kHz (4:1) XLR |
Output Impedance | 3.5mm, 6.35mm (1ohm) / 2.5mm, 4.4mm (2ohm) / RCA (4ohm) / XLR (9ohm) |
Clock Jitter | 25ps (Typ) |
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Reference Clock Jitter | 70ps |
Built-in Memory | 256GB [NAND] |
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External Memory | microSD x1 (Max. 1TB) |
Capacity | 10,100mAh 3.8V Li-Polymer |
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Charge Time | Approx. 5 hours (9V / 3A PD2.0 Fast Charging) |
Playback Time | Approx. 11 hours (Standard : FLAC, 16bit, 44.1kHz, Unbalanced, Vol.40, LCD Off, OP AMP, Low Gain) |
Supported OS | Windows 10, 11(32/64bit), MAC OS X 10.7 and up |
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- Audio specifications based on Low Gain and OP AMP
- Audio was NOT muted during the measurement.