All-In-One Head-Fi Audio System
  • Powerful desktop headphone amplifier with digital audio player capabilities
  • Easily drives high impedance headphones with 4-step gain levels with maximum 15Vrms output
  • Features 3.5mm, 6.35mm unbalanced, and 2.5mm 4.4mm balanced headphone output to handle a wide variety of headphones.
  • World’s first use of flagship ESS ES9039MPRO Dual-DACs
  • An array of digital/analogue inputs and outputs ensures it can be at the heart of any hi-fi set-up
  • Supports high-resolution audio playback up native DSD512 and 32bit/768 kHz
  • Triple Amp System with dual Triode KORG Nutube tubes to fine-tune your sound
Sale price£2,299.00

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Desktop Audio System ACRO CA1000T


The world’s first device to feature a dual-tube triple amp system and the latest ESS flagship DAC. Designed for audio connoisseurs, the ACRO CA1000T pushes the sonic limitations beyond that of a standalone headphone amplifier with additional terminals for multiple connections.

The versatile ACRO CA1000T provides compatible I/O terminals that can satisfy the diverse needs of audio enthusiasts who want to build a complete head-Fi system. By providing XLR and RCA output, Wi-Fi, and Bluetooth to connect external audio devices and speakers, the ACRO CA1000T consolidates all your premium audio connections into one device.


Convenient, High-Quality Head-Fi Sound

The ACRO CA1000T goes beyond the limitations of a fixed headphone amp with its ideal Head-Fi audio system that can be setup anywhere you want and can run independently from its internal battery supply. The ACRO CA1000T offers detailed headphone sound thanks to its built-in high-power headphone amp that does not require a connection to other devices.

It's an all-in-one Head-Fi audio system 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 with maximum utility. For greater ease of use, you can change the input/output settings using the touch screen on top of the product while multiple cables and devices are connected.

Upgraded Sound

The ACRO CA1000T is designed with dual ES9039MPRO, using the newest flagship DAC from ESS for the first time ever to offer more vivid and voluminous sounds that surpass your imagination.

The ES9039MPRO is an additional ES9039PRO model that has a built-in stereo hardware MQA renderer. It has even more advanced modulation than the existing flagship DAC to reduce power consumption, noise and distortions inside the DAC for enhanced audio performance. Astell&Kern invented and optimized a new design of amp block to heighten the performance of the ES9039MPRO, allowing it to offer more balanced and intense sounds with deeper and richer bass sounds and clear highs.

Full Balanced Circuit with Dual-Tube

The ACRO CA1000T has dual Twin Triode KORG Nutube tubes, which were implemented for the first time in our award winning SP2000T, offering advanced tube sounds. When a product is equipped with a Dual DAC, and one vacuum tube there must be a separate circuit to convert the signal to Balanced right before the output terminal.

This structure requires a process to convert an unbalanced signal to a balanced signal, during which, noise gets amplified in the process. The CA1000T, however, offers a complete balanced circuit that separates left and right channels with two vacuum tubes, creating even more natural and softer sounds.


The ACRO CA1000T exceeds the standard approach to AMP Mode selection, based on the type of music you are listening to. Select between TUBE AMP mode, OP AMP mode, or the brand-new HYBRID AMP mode. OP AMP mode puts Astell&Kern's AMP technology expertise to use, delivering extreme clarity and dynamic sound, while TUBE AMP mode provides a uniquely warm and musical sound. HYBRID AMP mode - a first for digital audio players - enhances the resolution and clarity of the existing TUBE AMP mode to express more musical detail.

HYBRID AMP mode, combines the advantages of retro analog performance and high-resolution output, giving you the pleasure of a brand new tonal characteristic. Experience the unique sound enhancements that this AMP technology has to offer.

ACRO-CA1000T - Astell&Kern

Included in the box

  • 1x Astell&Kern ACRO CA1000T
  • 1x USB-C to USB-A Cable
  • 1x Screen Protector
  • 1x Quick start guide
  • 1x Warranty Card
whats in the box
General Specifications
Body Color
Rich Gray
Body Material
4.1-inch, 720 x 1280px touch screen
Supported Audio Formats
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)
2Vrms (Condition No Load)
4Vrms (Condition No Load)
ESS ES9039MPRO x2 (Dual-DAC)
Vacuum Tube
KORG Nutube 6P1 x2
Support up to 32bit / 768kHz Bit to Bit playback
Headphone Outputs
Unbalanced (3.5mm, 6.35mm) / Balanced (2.5mm, 4.4mm)
Analog Inputs
RCA (Stereo pair) x1
Analog Outputs
RCA (Stereo pair) x1, XLR (Stereo pair) x1
Digital Inputs
Coaxial x1, Optical x1, USB(Type-C) x1
Digital Outputs
Optical(3.5mm) x1, USB(Type-C) x1
802.11 a/b/g/n/ac (2.4/5GHz)
V5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC)
4.12"(104.9mm)[W] x 1.77"(45mm)[H] x 6.13"(155.8mm)[D]
about 980g (34.56oz)
Feature Enhancements
Firmware upgrade supported (OTA)
Audio Performance (Audio specifications will be based on Low Gain setting.)
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
108dB @ 1kHz, Unbalanced / 112dB @ 1kHz, Balanced / 121dB @ 1kHz, RCA / 128dB @ 1kHz, XLR
-115dB @ 1kHz, Unbalanced / -112dB @ 1kHz, Balanced / -138dB @ 1kHz, RCA / -145dB @ 1kHz, XLR
0.004% @ 1kHz, Unbalanced / 0.002% @ 1kHz, Balanced / 0.0005% @ 1kHz, RCA / 0.0003% @ 1kHz, XLR
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
Output Impedance
3.5mm, 6.35mm (1ohm) / 2.5mm, 4.4mm (2ohm) / RCA (4ohm) / XLR (9ohm)
Clock Jitter
25ps (Typ)
Reference Clock Jitter
Built-in Memory
256GB [NAND]
External Memory
microSD x1 (Max. 1TB)
Battery Capacity
10,100mAh 3.8V Li-Polymer
Charge Time
about 5hours (9V / 3A PD2.0 Fast Charging)
Playback Time
about 11hours (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