Astell&Kern Acro CA1000T | Transportable Digital Audio Player

A&K's ACRO CA1000T, the World’s First Portable Device with the Latest ESS Flagship Dual-DAC and Dual-tube Triple Amp System

Flagship ESS ES9039MPRO Dual-DAC, first use ever
Perfectly drive any headphone/IEM with 4 levels of gain up to 15Vrms
Triple Amp System with dual-vacuum tube for Hybrid options
Multiple in/outs provide maximum options and compatibility
Built-in battery for portability and optimal power delivery
Bluetooth v5.0 (aptX HD & LDAC) + Dual-band WiFi
32bit/768kHz playback, native DSD (DSD512), Roon Ready


All-In-One Head-Fi Audio System
ACRO CA1000T is an all-in-one Head-Fi audio system created for those who want to enjoy the best sound wherever they are! It's a multi-functional device that can play ultra-high quality sound sources and provide diverse in/out options for the perfect desktop companion. Complete with a powerful headphone amp and Astell&Kern’s proprietary TERATON ALPHA technology, the CA1000T is a versatile option for the home or office offering ultra-high quality sound anywhere using optimal battery power, with no need for a main power supply connection.
Complete the audio system of your dreams using just an ACRO CA1000T to provide true Astell&Kern sound thanks to its dual-tube applied Triple Amp System, 4-levels of gain that can operate the most detailed IEMs and hard to drive headphones, and ESS’s flagship ES9039MPRO Dual-DAC. It's truly an all-in-one solution that provides great connectivity with external audio devices and speakers thanks to its diverse range of input/output ports, allowing you to easily enjoy network audio playback and music streaming.

Extensive Input/Output Options
The ACRO CA1000T offers an extensive range of input/output options that can meet the needs of audiophiles looking to build their ideal Head-Fi system. For greater ease of use, you can change the input/output settings using the touchscreen on top of the product while multiple cables and devices are connected:

1. 3.5mm & 6.3mm, 2.5mm & 4.4mm Balanced Outputs
Will accommodate various headphones and IEMs including both low and high impedance varieties. 3.5mm port may also be used as an optical output.
2. Mini XLR, RCA Output
Balanced Mini XLR and Unbalanced RCA output with noise and distortion minimization circuits.
3. 4.4mm, Coaxial, Optical Input
Receive digital and analog signals from an external DAC, interface, or other external source.
4. USB Input, Bluetooth, Wi-Fi
Perfect sound from Mac and Windows PCs. Also supports network play such as AK Connect, Roon Ready (requires FW update), and other streaming apps via Bluetooth and Wi-Fi.

Specifications
General


Material: Aluminum

Display: 4.1” 720x1280

Supported Audio Formats: WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF, MQA

MQA Playback: Tidal Masters, Local files, External USB, MQA-CD (ripped)

Sampling 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) Stereo | DSD512 (1bit 22.4MHz) Stereo



CPU: Quad-core

DAC: ESS ES9039MPRO (x2) (Dual-DAC)

Vacuum Tube: KORG Nutube 6P1 (x2)

Output Level

[Low] UnBAL 2Vrms / BAL 4Vrms (No Load)
[Mid] UnBAL 4Vrms /
BAL 8Vrms (No Load)
[High] UnBAL 6Vrms /
BAL 12Vrms (No Load)
[Super]
UnBAL 8Vrms /
BAL 15Vrms (No Load)
RCA 2Vrms (No Load), XLR 4Vrms (No Load)



Decoding: Support up to 32bit / 768kHz Bit-to-Bit playback

Headphone Outputs

UnBAL: 3.5mm, 6.3mm
BAL: 2.5mm, 4.4mm



Analog Inputs00: (x1) 4.4mm BAL

Analog Outputs: (x1) RCA pair, XLR pair (x1)

Digital Inputs: (x1) Coaxial, (x1) Optical, (x1) USB-C

Digital Outputs: (x1) Optical (3.5mm), (x1) USB-C

Wi-Fi: 802.11 a/b/g/n/ac (2.4/5GHz)

Bluetooth: v5.0 (A2DP, AVRCP, Qualcomm® aptXTM HD, LDAC)

Dimensions: 4.1" x 1.8" x 6.1"

Weight: 2.16 lbs
Firmware update supported (OTA)

Audio


Frequency Response

UnBAL: ±0.031dB (20Hz~20kHz) | ±0.079dB (20Hz~70kHz)
BAL: ±0.029dB (20Hz~20kHz) | ±0.029dB (20Hz~70kHz)
RCA: ±0.033dB (20Hz~20kHz) | ±0.080dB (20Hz~70kHz)
XLR: ±0.002dB (20Hz~20kHz) | ±0.008dB (20Hz~70kHz)



S/NR

UnBAL: 108dB @ 1kHz
BAL: 112dB @ 1kHz
RCA: 121dB @ 1kHz
XLR: 128dB @ 1kHz



Crosstalk



UnBAL: -115dB @ 1kHz


BAL: -112dB @ 1kHz
RCA: -138dB @ 1kHz
XLR: -145dB @ 1kHz



THD+N



UnBAL: 0.004% @ 1kHz


BAL: 0.002% @ 1kHz
RCA: 0.0005% @ 1kHz
XLR: 0.0003% @ 1kHz



IMD SMPTE



UnBAL: 0.0007% 800Hz 10kHz (4:1)


BAL: 0.0007% 800Hz 10kHz (4:1)
RCA: 0.0007% 800Hz 10kHz (4:1)
XLR: 0.0007% 800Hz 10kHz (4:1)



Output Impedance

3.5mm, 6.3mm: 1Ω
2.5mm, 4.4mm: 2Ω
RCA: 4Ω
XLR: 9Ω



Clock Jitter: 25ps (Typ)

Reference Clock Jitter: 70ps

Memory


Built-in: 256GB

External: (x1) microSD (Max. 1TB)

Battery Capacity: 10,100mAh 3.8V Li-Polymer

Supported OS: Windows 10, 11 | MAC OS X 10.7 and up

In the Box

ACRO CA1000T
USB-C Cable
(x2) LCD Protective Film
Quick Start Guide
Warranty Card