Astell & Kern at Audio46

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Astell & Kern - ACRO CA1000 Headphone Amplifier


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Product SKU: ACRO CA1000 Moon Silver

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Product Details from the Brand

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Powerful Audio Anywhere, CA1000

Introducing the Astell&Kern CA1000 Carryable Headphone Amp.

  • Powerful Output 15Vrms
  • ESS ES9068AS Quad-DAC
  • Native DSD 512
  • Powerful Connections
  • USB PD Fast Charging
  • Crossfeed
  • MQA 8X
  • LDAC aptX-HD

The ACRO CA1000 is a headphone amplifier that combines the functions and portability of a high-performance amplifier and DAP based on Astell&Kern's fundamental philosophy of delivering original sound.

The ACRO CA1000 sets a new standard for headphone amplifiers, providing powerful and clear sound with the features never available on any other headphone amplifiers.

  • Perfectly drive any headphone/IEM with 4 levels of gain and up to 15Vrms output
  • Multiple inputs and outputs provide maximum options and compatibility with all of your audio equipment
  • Equipped with ESS ES9068AS Quad-DAC for detailed and balanced sound
  • Support for 32bit/384kHz PCM and Native DSD512 playback
  • Built-in Battery- Portable amplifier can operate without external power supply
  • TERATON ALPHA, the epitome of Astell&Kern audio technology
  • Crossfeed support for a more natural acoustic experience with headphones
  • Support for the latest Bluetooth 5.0 and wireless 24-bit codecs (Qualcomm® aptX™ HD, LDAC)
  • Dual-Band Wi-Fi support for greater wireless connectivity
  • ReplayGain that automatically adjusts sound levels across different music tracks
  • Silver Plating Shield to minimize noise and interference
  • View you screen anywhere with a display adjustable up to 60 degrees

Perfectly drive any headphone/IEM with 4 levels of gain and up to 15Vrms output

In order to perfectly drive the most sophisticated headphones, a device must be able to fully deliver output that matches the characteristics of the headphone.
ACRO CA1000 supports 4 levels of gain settings so that almost any existing headphones can be driven to an optimal state.

The gain setting circuitry implemented in the CA1000 can drive even high-impedance headphones without degrading the sound quality using a max output of 15Vrms.

The ACRO CA1000 unlocks the potential of headphones for a fully immersive experience.

Output Level (SUPER) Unbalanced 8Vrms,
Balanced 15Vrms
Output Level (HIGH) Unbalanced 6Vrms,
Balanced 12Vrms
Unbalanced 6Vrms,
Balanced 12Vrms
Output Level (Mid) Unbalanced 4Vrms,
Balanced 8Vrms
 Unbalanced 4Vrms,
Balanced 8Vrms
Output Level (Low) Unbalanced 2Vrms,
Balanced 4Vrms
Unbalanced 2Vrms,
Balanced 4Vrms

* *Based on condition no load, there may be differences depending on the measurement method used.


Body Color: Moon Silver

Body Material: Aluminium

Display: 4.1 in. 720 x 1280 Touch Screen

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

Sample Rate: PCM : 8 kHz ~ 384 kHz (8/16/24/32 bits Per Sample) / DSD Native: DSD64(1 bit 2.8 MHz), Stereo / DSD128(1 bit 5.6 MHz), Stereo / DSD256(1 bit 11.2 MHz), DSD512(1 bit, 22.4 MHz) Stereo

Output Level (RCA Out): 2Vrms (Condition No Load)

CPU: Quad-Core

DAC: ESS ES9068AS X4 (Quad-DAC)

Bluetooth: V5.0 (A2DP, AVRCP, Qualcomma AptX% HD, LDAC)

Decoding: Support Up to 32 bit / 384 kHz Bit-To-Bit Playback

Headphone Outputs: Unbalanced (3.5 mm, 6.35 mm) / Balanced (2.5 mm, 4.4 mm)

Analog Inputs Outputs: RCA (Stereo Pair) x 1 RCA (Stereo Pair) x 1

Digital Inputs Outputs: Coaxial x 1, Optical x 1, USB(Type-C) x 1 Optical(3.5mm) x 1, USB(Type-C) x 1

Wifi: 802.11 A/B/G/N/Ac (2.4/5 GHz)

Dimensions: 4.12 in.(104.9 mm)[W] X 1.77 in.(45 mm)[H] X 5.85 in.(148.8 mm)[D]

Weight: About 32.41 oz (919g)

THD+N: 0.005% @ 1 kHz, Unbalanced / 0.002% @ 1 kHz, Balanced / 0.0004% @ 1 kHz, RCA

S/N: 107 dB @ 1 kHz, Unbalanced / 115 dB @ 1 kHz, Balanced / 119 dB @ 1 kHz, RCA

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